traffic trading scripts are designed ot increase overall traffic numbers to your site. You trade with another site sending him 100 hits a day and he in return will send you 100 hits a day roughly.
So you have a site that gets 3000 hits a day without a traffic trading script. It will stay at 3000 hits a day unless you get some good SE positions or buy traffic. Now take that same site with 3000 hits and set up a trade script adding 10-15 sites in it. Being your "base" traffic those 3000 hits will likely click 3-4 links each so you have 10,000 "clicks" let's say. Of your 10,000 clicks you send 2000 to trades, getting 2000 back. Well with 3000 hits to start with and getting 2000 back from trades your site is now 5000 hits already!
In theory of course. But skimmed traffic from trade scripts is not the best traffic but if you work it properly you can still make money
