Aion will be L2 like, why do you think the GM did that when other ppl were around? To show public that they do something... I was bottidng in L2 since 2006. Never baned. Left bots (partys) over night and nothing. Why? Because it's benefit for NCSoft.
Sure, they will ban someone here, and there, and make major bans with every expansion. (Never bot, week before, and after new big patch - L2 experience)
Let's say that new player comes to play Aion. He starts and finds out that he needs some kinah to buy this blue bow, so he does from farmers. He continues to play, and after hitting 30 he thinks that it would be nice to have this and that, and crafting is timesink so he won't bother, so he buys kinah again. But he stays in aion, and he likes that he can give up a beer to buy kinah - he stays, he gives $ to NCSoft and farmers. Farmers have $ to pay NCSoft monthly fees, and they have alot of bots. NCSoft bans them one for a while but not often because that would scare them. And there are botters like us, botting to sell acc or to lvl up their toon, either way, again it's benefit for NCSoft. If you bot your own char, you probably are going to play after you reach certain lvl, so you will continue to pay NCSoft. If you will sell acc, someone will buy it, and again he will pay NCSoft.
It's a play. Everyone has own role. And it benefit all. Why NCSoft would like to change that?