Skimming Traffic
 

How do scripts like Smart Tube Pro and others free scripts skim the 1.5% that they require in order to use their script free?

How is this tracked and how does it work is what I am asking I suppose?

Its internal

If you send 100 visitors, 1 will be redirected to the trade script company and 99 will be sent to your trade partner.

You'd have to ask them how the track it.

yep with simple redirections for a XXth visitor

When installed, click through your Tube, and and you'll see when you get redirected to sites you don't trade with.