Well, if the OP wants to hide his other stuff from people here, just email Tubadiva@aol.com and ask her to change your name to something else.
Of course, the ship’s already sailed for anyone who’s seen the thread, but that’s what you get for asking in public. Still, anyone else will remain in the dark.
On other places, contact the administrators there, look for options to close your accounts, etc.
Note that changing your name does not unlink you from your old posts. Your old posts will show up under your new name (which can get confusing if someone addressed you by name in a particular thread)…
*Last thing I remember, I was
Running for the door
I had to find the passage back
To the place I was before
"Relax, " said the night man,
“We are programmed to receive.
**You can check-out any time you like,
But you can never leave! **” *
I’d like TPTB to delete all those posts of mine where I accidentally divulged the secrets of transmuting base metals into gold. That knowledge must return to obscurity. Also, the worst thing I could do would be to draw attention to it, by mentioning it here.
A factual answer to the OP’s question of “Who would I ask about this?” would be: Ask any- and everyone including your next-door neighbors and old childhood friends you’ve not heard from for years. Because the result will be the same.