First, I think it's easier to just block Katsuras.
It's funny because the selling of platinum bands is OLDE news.
SE even made an cautionary announcement instructing players to refrain from doing so. If it kept up, they would change it.
The number of non 30-day trial "subscriptions" (different from active users) doubled in the last 4 months. It was at 2 million in the fall, and hit 4 million this February. That means 2 million full versions of the game were purchased.
https://games.yahoo.com/news/final-fantasy-14-reaches-4-210316632.html
Quote:
Square Enix revealed today that the total number of registered accounts for Final Fantasy 14 has surpassed four million worldwide. While this number includes players from all regions that the game is available in, Square noted that it does not take into account players who only signed up for a free trial. In other words, all four million of those registered accounts purchased a full version of the game, at least.