I'm starting to wonder if you can even read? My first post is more than clear. If you had read it then you wouldn't always have to ask the same questions.
Why is it that people post in a thread they haven't read? Is it to drive up the post number? What is it? Enlighten us with your wisdom.
Oh while we're at it... You seem to be perfectly fine with what this player is doing, the way you defend everything, what if it was your server + all the other servers in your data center?
Players with millions of Gil don't think for a second that players who aren't full of Gil also want to somehow earn Gil through sales, but they don't even get the chance because there are players who take the whole market and don't want to share.
Then you are always told to sell something else or accept that one player claims the entire market for glamor items for themselves.
But that also means that the market is no longer free if players can only sell cheap dirt because the good items are claimed by a few.
Maybe there needs to be a gil limit so that RMT sellers finally disappear. Gil limits could be linked to the account age + the jobs a character has leveled + achievements + actual days played.
All together would be a good start to getting rid of RMT sellers.