The reason nothing gets done about is because the messages in game are not breaking any rules that warrant a ban. It's not against the rules to hire people to take you through content for gil (or even for free). Nothing they say in game will be trace-able to the fact that we know it's being done for real money, which is where the issue is. You need proof to be able to ban someone. The other part of the issue is you can only use the game to hold accountability. In other terms, anyone can claim to be anyone outside of the game, so unless you get proof of people selling content for money in game, and not Discord (or whatever platform they wish to use), there is no actual proof that it is this particular person.