Post count is irrelevant.
And what you count as a "useless post", i count as a celebration of achievement. It is nice to be able to respond with some words to express how you feel don't you think? Especially when you can share it with others. That wouldn't happen in a PM.
There is no point in having a forum if you cannot post freely on it... 
yeah man, i get what u mean, its nice share ur happyness with every1 yeah, and all can xpress his opinion, coz we are a community and we got a lot of friends here
but, obviously, every1 here is happy with this new forum, and all of us want to gratz high staff coz they made a great job here, but, can u imagine if all members post his congz on forum ?¿¿?