I know that a similar question (How to merge two different Stack Overflow accounts?) was asked a lot of times, but the answer to all of them was the same: visit the help centre page on merging accounts and use the contact form with the
I need to merge user profiles option selected.
Unfortunately, I want neither to merge two Stack Overflow account nor to merge a Stack Overflow account with a Stack Exchange account. And the solution seems to work only in the second case.
What I should do if I want to merge two different Stack Exchange accounts?