I noticed the increase in RMT tells as well. Earlier I got half a dozen in 5 minutes, all from different names and websites. It's getting rediculous!
I'm in favor of a /friendtell option so that, if you don't like/use /tell to talk with strangers (and for Twelve sake, I'm glad nobody has given me a {Thank you} over a /tell yet like in FFXI), you can turn the /tell log filter off.
Hells, I suggested this earlier ingame.

Have yet to encounter RMT giving me a friend invite though...