They seem to have gotten really bad with spamming their tells recently, have had to go on busy where before I never did. That said, I'd like to see an easier method to report rmt spam, like what you find in other mmos such as SWTOR and WoW, where along with the friend/party/blacklist options, you would also find the "Report Spam" option. It's just so time consuming to report it currently that more often than not, I just don't bother anymore and just go on busy instead and I'm sure others do the same. I definitely think making the reporting process simpler, streamlining it, would go a long ways to helping reduce the problem, but that's just my opinion of course. =)

But being a FFXI vet and seeing the effect the rmts had on that game, I'm not entirely surprised to see how bad the rmts have gotten in XIV either, I'm sad to say. I definitely do want to see them gone tho.