Ah. This will likely annoy those folks in the League Of Legends thread who said they played Heroes Of Newerth because the entry fee kept out the rabble. Well, now the rabble is coming for you! Don't worry too much, though, because you can always set up your games to filter those pesky free accounts, and keep to the "legacy" players. Legacy is what your account will called if you paid for HoN in the past, apparently. Which keeps it all nice and tidy.
Still, I've just had a read of the HoN forums. Oof.