Nothing to click. No credits to earn.
No one has to do that!
But yet, traffic is constantly generated to show your programs.
Offering something free and instant, such as ad posting, to gain repeated "sticky" traffic is far more effective advertising than showing just a page listing your programs.
This shows your banners and programs and offers them something to go to the page. People will bookmark your page and post again = you show off your programs again.
You'll want to upgrade on this one ASAP as new people posting and new people joining will happen very, very quickly.