I feel bad for Jeff, I have zero indications of sales being shaved and i believe if they would do this they would pretty quickly get banned and thrown out from all major sites / affiliates. There's a reason keep2share is so popular and it's not because they are "shaving". What should Jeff tell you is the problem that would make you happy when the problem is probably the traffic you're attracting? If you attract leech traffic you get zero sales, you need to attract users with special interests, they are willing to pay others are not.
I'll be the first to scream if there's any indications of shaving, if you have issues why don't you simply get on a vpn, buy a premium acc on your own file and test it out? I'm literally 100% sure you'll get a sale. K2s isn't stupid enough to start shaving sales when they have such a good reputation on all the sites.
Drop in sales? Perhaps.... but there's no indications it's because someone is shaving, it's more likely due to the banks shutting down many payment processors and not allowing filehosting for CC payment due to the increase of fraudulent sales that come through on filehosts using hacked/stolen credit cards.