Before starting anonymous activity, you need to check old blogs and profiles.
Even if the person has forgotten, searchers have not.
Old handles, bios, link lists, profile images, regions, schools, workplaces, hobbies, and past writing. These become clues that connect with the current anonymous account.
Anonymity is not determined only by the account you use now.
When your past self and current activity connect, the candidates narrow quickly.
This article explains how to check old blogs and old profiles, and which information to organize.
Old Profiles Become Strong Clues
A profile is information created by the person to describe themselves.
For that reason, information connected to identity is gathered there. The older it is, the less cautious the writer may have been, and it may directly include region, school, work, family, hobbies, and links to other accounts.
Old profile information
Connection with the present
Old handle
Correlates with new IDs or writing style
Region
Connects with current post content or photos
School or workplace
Becomes a clue to field of expertise or life schedule
Hobbies or activities
Overlaps with post themes or relationships
Link list
Leads to other accounts or real-name information
Profile image
Connects to past accounts through image search
Old profiles are dangerous even if they do not show a real name on their own.
When they overlap with current post content, they are treated as the same person.
Where to Look
Old blogs and profiles are not always found with one search.
Information is scattered across services used in the past, forums, profile sites, social media, game accounts, fandom or creative sites, and school or organization pages.
Place to look
Reason to look
Old blog services
Bios, articles, comments, and link lists remain
Social media profiles
Icons, old IDs, and mutual links remain
Forums
Phrases, fields of expertise, and old handles remain
Creative or portfolio sites
Style, activity name, and contact information remain
Event pages
Affiliation, participation period, and region remain
Archive sites
Deleted pages may remain
In searches, use not only real names, but also old handles, parts of email addresses, IDs used in the past, titles of works, blog names, and distinctive sentences from profile text.
What to Check
In old blogs and old profiles, check the following items.
Check item
What to look at
Name and ID
Real name, old handle, whether it resembles a new ID
Images
Face, icon, background, materials used in the past
Links
Real-name social media, other accounts, portfolio pages
Bio
Region, school, workplace, age range, family structure
Article body
Writing style, habitual phrases, expertise, past experience
Comments
Relationships, how you were addressed, past conversations
Comment sections and link lists are easy to miss.
Even if the person has deleted the profile, names or nicknames may remain in other people's comments.
Separate Deletion, Making Private, and Operational Changes
Rather than trying to delete everything you find immediately, separate responses by situation.
If you control it yourself, you can delete it, make it private, or edit the profile. Information on old services you cannot log into, pages controlled by other people, or archives requires a different response.
Status
Response
You can log in yourself
Delete, make private, or edit the profile
You cannot log in
Password recovery, inquiry to the operator
It is on someone else's page
Ask the administrator to delete or correct it
It is in an archive
After handling the original page, consider an archive removal request
It cannot be deleted
Operate so it does not connect with current anonymous activity
If some information cannot be deleted, design current activity with that information in mind.
For example, if a past region or occupation remains, avoid reinforcing the same information in current posts.
Old Accounts You Cannot Log Into
With old blogs and profiles, you may not be able to log in.
You may have lost the email address, the service may have ended, you may have forgotten the password, or identity verification may be difficult. In this case, organize the situation rather than forcing repeated login attempts.
Status
How to think about the response
Email address was lost
Check the service's recovery procedure
Service ended
Check whether it remains in archives or search results
Password unknown
Check password reset records and identity verification
Someone else manages it
Consider contacting the administrator or operator
Cannot be deleted
Operate so it does not connect with current activity
Old accounts you cannot log into continue to be material for correlation if left alone.
Even if you cannot delete them, it is important to understand what remains.
Do Not Assume a Dead Link Is Safe
Even if a link to an old blog or profile is dead, the information has not necessarily disappeared.
It may remain in search result fragments, archives, reposts, other people's quotes, or cached profile services. An old link list may also lead to another account.
Around the dead link
What to look at
Search result description
Whether an old bio or name remains
Archive
Whether past versions are saved
Other people's quotes
Whether an old handle or link was reposted
Link list
Whether a path to another account remains
Image search
Whether the profile image remains
"A page that does not open" is not always a dead end for someone searching.
They may move to other information through the URL, title, image, or quoted text.
Compare Against Current Anonymous Activity
The purpose of checking old profiles is not to erase the past completely.
It is to know what can connect with current anonymous activity.
Past information
What to avoid now
Old handle
Do not use a similar ID or the same abbreviation
Old icon
Do not use the same image or a similar composition
Regional information
Do not reveal detailed life information from the same region
Occupation information
Do not reveal too much technical vocabulary or work schedule
Writing style
Avoid the same catchphrases or structure as the past
If you know what information remains in the past, you can decide what not to reveal from now on.
This can be a more realistic mitigation than deletion.
Do Not Treat Review as One-Time Work
Checking old blogs and old profiles does not finish completely in one pass.
Search engine results change. Archives may be found later. You may later notice that quotes remain on someone else's page.
Check once before starting anonymous activity, and review again before major posts or activities.
Past information becomes easier to forget over time.
The information you have forgotten becomes a weakness when someone else finds it.
Summary
Old blogs and old profiles contain clusters of clues that can break anonymity.
Old handles, regions, schools, workplaces, hobbies, link lists, profile images, and writing habits connect with current anonymous activity.
When checking, search not only real names, but also old IDs, parts of email addresses, titles of works, and distinctive writing.
Separate found information into what you can delete, what requires a request, and what must be handled on the assumption that it cannot be deleted.
For anonymity, what matters is not erasing all past information, but avoiding adding new clues that connect the past and present.
Related tools
Archive check
Wayback Machine
An external resource related to this article. Open it only when it fits your situation and threat model.
Why it is listed: It can help with the article topic, but it is outside Anonymity Sense and should be checked before use.