I can remember that in the middle on '90 I traveled to the US, on the plane we received a form to fill out and to present together with the passport at the border-check. The form was very similar to this one: http://www.uscis.gov/files/form/i-485.pdf When somebody is signing up for a new account, you can ask to answer some question like: 1. Are you a bot? 2. Are you a spam-bot? 3. Do you sign up to spam the forum? 4. Are you going to copy others script? .... PS: It's told that more than half of the nazi criminals were captured because they have answered yes to the 7th question on page 3 :) <p>I can remember that in the middle on '90 I traveled to the US, on the plane we received a form to fill out and to present together with the passport at the border-check. The form was very similar to this one: <a href="http://www.uscis.gov/files/form/i-485.pdf">http://www.uscis.gov/files/form/i-485.pdf</a></p> <p>When somebody is signing up for a new account, you can ask to answer some question like: <br />1. Are you a bot? <br />2. Are you a spam-bot? <br />3. Do you sign up to spam the forum? <br />4. Are you going to copy others script? <br />....</p> <p>PS: It's told that more than half of the nazi criminals were captured because they have answered yes to the 7th question on page 3 :)</p> 2008-09-30T12:24:51Z 3 Forum 15592 9264 2008-09-30T12:24:51Z 28612