I was doing this two for a about two weeks. Even if I was running to a story quest, I'd just stop and report them. But the last few times I've logged in, the RMT has been very bad. I was getting messages from three or four different sellers within a one or two minute time frame. I'd block them, just to receive tells from two or three more. I'd block them as well, perhaps miss one, then get another tell and think to myself, "Whoops, I missed one." Then as I'm going to block them, two more show up. It was like I was battling an RMT Hydra or something.
Have they found a more effective way of botting, or a niche in the market? Why are there suddenly so many more than there were two weeks ago?