Using this site,
https://smarthand.pro/top, I cant find literally any high-volume players at any stakes with w/r over 4bb/100. Using that site and sorting by hands at any stake, the results are shocking. Meanwhile, at other sites there are loads of substantial winners, even on sites that offer a higher RB%. Is this the confirmation that people have been suspecting for a long time, that GG is simply banning any player above a certain winrate and using "bum hunting" as a justification? IT makes a lot of business sense to do this. Only allow small winners, break-even, or losing Rakeback grinders on your platform.
Here is GG poker top volume players for 100-200nl, last 2 years (all stakes are similar):
Ps:
Ipoker (more rakeback here than GG)
WPN (again, MUCh more RB without GG bait and switch PVI system)