That's nonsense. All posts should count towards the total.
Posts in some sections do not count to total due to the amount of rubbish that gets posted in those topics ie transfer board, chants board, off topic boards. This is a West Bromwich Albion forum and we prefer people to discuss the club so posts there count.
Why should someone have 1000's of posts just updating scores, posts making chants up or filling the transfer board with random bilge from twitter or other stuff from websites made up by a kid sitting in his bedroom ?
You can call it nonsense thats up to you but it won't be changing.