Actually it happened to me back when I was hitting a milestone (10k) as well. I've made a thread about it just as you did.
As quickseller said, basically when a moderator moves it into the trashcan all posts get deducted and there is no notification (that's the problem causing confusion). You should simply avoid threads that are against the rules (orginal post). It's pretty simple to notice such a thread, e.g. do not post in a thread that has a referral link in the original post.
It's always good to take another look at the full list of rules.
I'd also recommend closing this thread to avoid unnecessary replies. If you have other questions feel free to send me a PM.