A right click report gil spammer option seems like a good idea, but an auto-account freeze not so much.

Maybe the more reports, the higher it goes in a "queue" of RMT reports for a GM to review, so the most reported, and active RMT spammers get hit first. And if anyone tries to grief someone this way, a GM will investigate, and be able to see something like that all the members of the "report random people as RMT spammers for the LOLz" Free company did the reports, or whatever.

And keep that warning that abuse of the system is reporting anyone other than a RMT spammer by that method is considered abuse of that system, and for other forms of player abuse or other issues, to submit a petition.

I know Eve online has a system just like that, a right click to report RMT spam, and I have never seen a RMT spammer in that game, ever.