The posts were deleted because of off topic content. Including some (asking for better behaviour) posts of my own, and some by other members including some which were insulting to the principal complainant, Abd. (about the deletions) Can't win them all. He is temporarily suspended for insulting comments. He may not be back.
ETA. I see Abd's comments about hacking above. Offensive in itself if untrue which it is. Let me assure all members that posts are never edited in any way by me or other mods without the edit being noted by the mod clearly on the post in question.
Incidentally I have majority management/admin support for my action.