I think a good idea would be an option where you can turn off all incomming PM or only people on your friends list can PM you. Facebook has this option aswell as most chat programs, its an easy fix the only downside I see is gil sellers might start spam shout. It might not be an end to it all but i believe it will help. Iv just blacklisted 8 gil sellers in 30 minutes, today has by far been the worst experience iv had with them and it takes me out of the game and makes me not want to play. I hope you all agree and hope the developers do also.