I had access to that part of the forum before, I could read and write, but now I can't see any threads there because I "do not have the required permission"....
Some players still managed to get away with it for months on some other Pokemon MMOs. I believe the security system of PRO must be better, or simply the staff cares more :D
I think they want to avoid exploits like hunting on more than characters simultaneously, or doing some quests too many times and give all the rewards to one character. Or something like that.