Originally Posted by adultpixel

This "enter cc number just for age verfication"-thing trick is something old and probably worked at the beginning. but today I would say, most of the users also know about these tricks - they smell the fish and they leave the site.

Ask yourself: If you have the the options
a) to join a site for free, but have to enter your credit card information
b) to join a site for $5 for a trial membership, for example 3 days

which one would be your choise? Same site, same content and I would like to join - I would choose option b. Because it's clear for me, I have to pay $5 and will get 3 day trial access... in my opinion: tell the surfer the truth, make it clear what he has to pay for how long and don't try to hide the cancel options - everything else will lead to lost customers or can end in chargebacks.