I believe that it's just excitement over the new forum, and a little rivalry from the old forum. The "big posters" like Jazzee is suddenly returned to the starting line with everyone else, and the race has been reset. Plus, I think the Quick Reply feature invites more people to post than before.
Regardless of the reason, I expect everyone to settle down and old posting habits to return after awhile. Let them play for a bit, and then we can get down to decorating this new house.
