Hey, man. Yes, if your post has no value, it is likely to be deleted.
Or you have stolen someone else's post. There is also the possibility of being deleted.
Don't you read what is being asked? OP's post was deleted and no notice was being sent to him.
It could that the thread you are replying or quoting was the one being deleted and not your post itself. I have encountered that one too. If your own post is deleted, it is automatic that it will send you email and message in Bitcoin Talk.
I think you are right buddy, the thread was being deleted and not the post it self.
@OP, if you're question is being answered then you can lock the thread to prevent spammers.