RMT Deleting characters before blist add?

[Kikosho]

You can't blacklist if the character is logged off I think so most likely they are sending mass-tells then logging off immediately.

Actually, what Acyd said could also be possible. In Gridania, I see a group of 8 RMT enter an instance and come back 30secs-1 min later constantly. I sat watching them for an hour one day while bored and this was non-stop.