In WoW, when you report an RMT spambot, it gets muted for the remainder of your login session. I think it also made all their existing posts disappear from your chat frame.

It's value in WoW was diminished somewhat because players constantly log characters off and on to switch to different characters & jobs, which unmutes all the spambots.

Here, since we usually stay logged in with just one character, the mute would last beyond the time the spammer name exists. It also provides a great incentive to report them because one report makes all their annoying crap disappear.

Currently, reporting them has no apparent effect, since they keep polluting chat unless you move out of the city or switch chat to battle mode, which also kills text interaction with other players.