We have had a few new posts recently that have been by a 'hidden' poster almost immediately after being posted. One about a Wigan choir that is in my emails as from 'sverty'. Jennifer (A1J1S) has mysteriously vanished practically mid-sentence. I do not think they have deleted their accounts, I think they have been removed by a technical fault. I have reported this, but no acknowledgement.
HU has a vigorous spam detector that has been known to decide you are suddenly spam...as I know, I have been there!! This also means the "help" centre will ignore you.
If this happens to you (Jennifer?) either email firstname.lastname@example.org or open a new account.
I have left this unlocked on purpose.