This wouldn't be so bad if we had two separate lists: one for annoying (real people) players and another list for gilsellers. (And they could automatically investigate whenever 10 different people add a name to the gilsiller list---like an automatic reporting tool).

As it currently stands, when my blacklist gets full and I need to delete a name to make room for a new gilseller, I have no way of knowing if I'm removing the name of an old gilseller (who is probably gone from the game) or an annoying player (who might still be around).