I know this probably isn't the place to post this, but there is no way of reporting them through the usual methods due to the sheer armount, but on Zodiark [EU], if you stand at any of the main story quest givers in the vanila zones, you will see groups of archer and thaumaturge lalafels teleport in, jump, do the "speaking to the NPC" animation, then teleport away again. They come in groups of 4 or more, and have weird gold spammer-like names.

I've been playing a couple of hours leveling a new toon through the story, and every time I go to hand a quest in, a new group is popping up out of the ground and teleporting away again. All with different names each time. I must have seen 40+ so far. I know botting and hacking is rampant in this game, but this beyond the normal levels.