nmp
Member
I've seen many user deleted posts with various reasons in the past. Quite often discussions can get heated and someone might say something they wish they had not. They'll delete their post and give a reason like "I shouldn't have said that, apologies". In which case it can show members self moderating, which can be a positive thing for all to see. Out of 100s of posts a day I doubt many get deleted by members at all. As matt said it can also help moderators pick up on scammy behaviour. Maybe someone makes a deal in the classifieds then deletes it. Then there is a breadcrumb to follow later if needed.
Cynic in me would say I doubt anyone is likely to leave an apology for their bad behavior in a crumb that is for everyone to see for eternity. In any case, it's your prerogative ultimately, so this is my last post on the subject.
Thanks for everything you do.