I am going to give the benefit of the doubt and assume this thread is in response to RMT spammers and not the OP being some elitist douchebag.

While it is thankfully easier to add RMT spammers to our meager blocklists, I do wish that it were easier to report these instances of RMT.

Preventing anyone from being able to communicate in any fashion that are below a certain level will not hinder RMT spam, one need only look at how well that worked in Aion. (Hint: it didn't. They found another way to spam.)

Really the only way to decrease RMT spam is to make the market less attractive. Sadly, as long as there are those who will buy in-game currency, or supports buying (either through apathy or genuine support), there will always be RMT services and, thus, their spam. (At this point, I'm all for inflicting physical violence upon people who buy in-game currency from RMT service providers.)