No, you do not have to enter a CAPTCHA when you ask a question. And when you answer a question? To answer a question, however, you have to enter the CAPTCHA if you are not signed in to the site.
Many reasons, possibly. 1. You (once possibly) used a script (like a bot tool to stalk 2 stranger conversations). or; 2. You go on there too much and they blacklisted your IP address.
A CAPTCHA is a type of challenge-response test used in computing to determine that the user is not run by a computer. The process involves one computer (a server) asking a user to complete a simple...