I'd say we just need a proper way to report them. I mean, that's how you usually deal with gold sellers and other pests in MMORPGs - ignore, block, report.
Finally decided to quit Guild Wars 2 after like.. 4 years? I'm so glad i did that, it was draining the living out of me.
Smite is usually what i play when i'm bored now.
Also i'm playing the crap out of Skyrim once again.