I think iHub should put far more stringent limits on posts - no more than 3 per day per person on a given board and no more than 50 per calendar month per person on a given board.
There are too many boards (LWLG and DBMM come to mind) where a few people post endlessly all day - usually extreme pumpers or bashers. These posts, and the replies to them, clog up those boards to the point of making them unreadable.
If I could afford to buy all of them, I would not need to buy any of them and I sure wouldn't be spending time on the message boards!