I just checked Croatian local board, and at least one thread's reply count is off (by 1 ). At first I thought that only threads with deleted posts might be affected, but then I found few threads that have correct reply count while also having bunch of posts deleted, so I guess that cant be the reason for discrepancy.
The number of posts you will be made will not count directly as activity for it needed some time before it will be counted.
Will you start reading the posts properly before shitposting in order to fill the signature quota? You keep doing the same thing, littering the forum. I honestly can't believe that you are paid 40 USD per week to write that kind of garbage.