I noticed rather unhelpingly that staff run threads don't show your posts when you search your username, meaning if you posted and don't feel like digging in 100 pages of your posts... you can no longer see whatever you said (which isn't helpful in counting threads, ftt, and anything really run by staff that try to prevent spam). Yet in regular member run threads I can still find my old user I changed a good year ago.
... Why?
I cannot recall if I posted some pets in the counting threads after December 18th of last year, and the pet species isn't up yet (the staff member hasn't updated it yet from last 18th) so I can't tell if I posted them or not, and I'm not allowed to post the same pet twice.