I've seen posts deleted by their non-moderating owners for a while... But for some reason, when I try to delete my own posts, I don't find the option to do that. (Of course, except in my own forum and anywhere else where moderators have permissions to moderate stuff.)
Could this be a group permission bug? ... that only moderators do not have the ability to delete their posts for some reason?
As a test: Can other moderators try to delete their posts in sub-forums they do not moderate?