So when mods move a thread to trashcan it deducts the post from our post count but it wont send a notification to us?
Yes. I remember trashing a huge thread full of spam once. Fun times.
silent deletion I see, and no body can access trashcan, now I know why sometimes I see my post counting backwards thinking that I'm delusional, what else you sneaky mods are doing while we're sleep, maybe taking us to the mother ship and do nasty experiments on us? triple lol.
It's not deletion the way that deletion is usually defined. If they delete a post or thread, then they can't recover it without an admin (or possibly only theymos). When you trash a thread, the posts no longer count and it's no longer visible. However, moderators can restore it themselves. It's the equivalent of moving it from one second to another basically (with one having post count turned off).