Born is right, there is a lot of activity that WGT will not air in public.
The selling of credits at a discount into a pay pal account came up a few weeks ago and I know that WGT acted upon it, since a friend of mine was suspended for a week or so. In his case I don't think he realized he was violating the rules or if he did he pretended not to know, I would have not known what he did was against WGT rules.
That has gone on since the beginning of WGT I'm pretty sure, but with the changes in the ELITE collection, I think people have gone to the selling methods. I have seen several years ago players offer to play match play matches for credits and if you lose they gift you balls so it isn't anything new just a new approach.
I also agree that we need to police things ourselves. With millions of members, WGT can't find everyone that is doing things wrong. I think an email to WGT is the appropriate way to do it. As someone else said, naming names on the forum isn't allowed and even it if was it isn't right. You label someone as a cheat because you think they are without proof and they are now tagged as a cheat.