The evidence for this last account is really circumstantial, and is the only account on which I believe we may have doubts: (New proofs added in this post.)
All of those accounts have an old post history in this section of the forum: Local / Konu Dışı 3/5 accounts have strange "other contact infos on profiles", idk what exactly are, can be EOS 12 numbers contract addresses? I've tried to search with EOS explorer but 0 results