Damn a lot of replies since the last time I checked this thread...
Here is my 2 cents
When I was accepting regular TGP submissions I used TGP brownie. I never managed to catch a cheater myself since the script always caught them before me.
But even though I blacklisted networks based on IP's on DNS server, sponsor link codes, usernames, E-mails, mail servers etc I noticed when doing some extra tracking that a script can't do many of the cheaters reffered back to just a few people.
A Credit card verification would elimate that 99% since it would be very easy to get new DNS servers, domains, mails, etc etc every week but very hard to get a new Visa / mastercard every week.
If a group of TGP's make a submission area that cost mayby $1-$5 or whatever per month it would elimate thouse cheaters since they could be charged for credit card processing and face jail time for fraud if they cheat.
Any serious TGP submitter would have no problem paying that kind of money since they would easyli make the money back.
It might be harder for "newbies" to get started but why should it be free to start in this kind of business when other ventures might cost at least $10K to get started.
The market is getting floaded with people that think it is best to give away as much content as free as possible so they get more visitors while thouse kind of visitors usually are the ones that don't know the difference between "public license" and "license" while the people that usually are serious about getting started spend a few dollars on content and then it wouldn't be that big a problem to also pay a few bucks for some gallery listings.
I would suggest all the revenues from such a "submission poll" would go to "Safe the Children" or similar orginizations.
Perhaps 75% to charity and 25% to PR telling the "public" about how the porn biz. started cleaning up all the shit that is around.
That would increase sales since now only things that hit the public is bad things. And people get affraid to use their CC's etc.
Well just my 2 cents
