Why can't they auto-block RMT posts?

[KageTokage]

It's unfortunate that there's no way for them to detect the modded clients that the bots are using, because they're essentially running a completely stripped down client that basically only sends out the commands needed to log in their characters and make them function

There's virtually no GPU or CPU usage involved, which means that they can multibox several hundred characters on one potato of a PC with their connection speed being the only real limiter.

If IP address spoofing wasn't so easy, they could also just block out access to any addresses being used by several hundreds accounts simultaneously since not even the busiest of net cafes are likely to have as many players connecting from the same IP as these RMT farmers do.

Tbh this is what PSO2 did. Banned all of china, bots and actual players alike.

The sad thing is that it actually worked. In the first six months of the game being out or so, it was insanely common to see piles of hacking bots trying to farm money on empty server channels and there was also some isolated RMT spam.

As soon as they went through with their somewhat extreme move to deny all service for China, this activity stopped completely and never resurfaced.