Basically, I stand in as a proxy between the blackhatter and the cpa network. The blackhatter sends a mark to a link on my website that redirects the mark (after blanking referrer) to the CPA offer. The mark completes the CPA offer, and the blackhatter gets paid and I take a commission.
The idea is that the blackhatter doesn't need to sign up with the CPA network to use the CPA offers, he just needs to sign up with me.
It benefits n00bs who don't want to invest in a website or are hesitant to make the first step. For those who are banned from a particular network, this also benefits them because they can simply use the links I post and get paid by me.
It also means you can try out really blackhat stuff and if anything goes wrong I'll be the one who gets banned.
I hope that clears things up but please ask again if it doesn't.