How to remove your Stackoverflow account
In order to delete your StackOverflow account, go to https://stackoverflow.com/help/user-removal and follow the instructions mentioned in the post.
The instructions include modifying details in your profile and then submitting a form from the above URL.
If your account doesn’t have any posts and you didn’t vote, you’ll probably see a delete link in your profile.
Helpful Trick: Removing online data
Publicly visible text/images often aren’t properly removed even when you succeed in removing an account. Try editing or removing them manually before removing the account itself. If you’re unsure what happens to your tracks: this can be found mostly in the Terms of Service/Privacy Policy; otherwise you can always contact Stackoverflow and ask personally. By the way, removal requests don’t necessarily mean your data will actually be removed (e.g. due to legal obligations).
Helpful Trick: Remove third-party logins
If you signed up for Stackoverflow using a third-party login such as Facebook or Twitter, you probably want to revoke all access from Stackoverflow. Click here to find out how.