In fact, a number of players have openly unearthed a rather significant gil-laundering operation to attempt to circumvent the known anti-RMT mechanisms such as the RMT Pwner v. 1.337 ...
All one has to do is to go to their server's Auction House and pull up the information on a Chocobo Feather.
A single, rather comparatively insignificant Chocobo Feather.
On every server in the game, in the last ten transactions, there have been literally single transactions in which a single Chocobo Feather has been sold for Mog Bonanza levels of gil. Tens of millions of gil.
This is no joke. It is a sophisticated, though rather simple, gil-laundering operation to attempt to circumvent efforts by the Special Task Force to combat RMT, to the tune of tens/hundreds of millions of gil, as and when possible.
Hell, I just got my first RMT tell in ages from Brosale today, charging $9/million gil.
(Even at those prices, a Stripeshell is still pushing $500, making a relic damn near worth at least a grand...)
STF and GMs have been notified.