I think it is several different reasons.
1. Alot of the "big name freestylers" aren't posting on forums anymore
2. there are only a couple posts a day, when people see this, they think that the forum is basically dead and almost don't want to post here due to the fact that it seems like no one is ever on here.
3. Facebook did take over. there are alot of specific freestyle football groups on facebook, people tend to go on there more and so it is more convenient.
4. online competitions are rare. i would compete in one, however, there aren't any to compete in. also the ones that do come up are rarely finished.
etc.