The RMT spam was a LOT worse the first 2 weeks. Now, I only see the occasional shout or tell. They have to constantly monitor it and adapt the filter as the RMT adapt. Like I said before, it's not as simple as it sounds- they have to be careful not to block legitimate messages in the crossfire. Every game has RMT and No game can completely eliminate it. The difference between if SE was actually doing nothing like you suggest, and them doing what they ARE doing, is like night and day.