I hear about spam bots a lot here, and how they spam here, however is the simplest solution to most spam bots just to require that all new users have to enter a CAPTCHA when registering? Or at least for them to have to do so before posting until they get to a certain rep (though this might be a little bit extreme)?
We actually show Captchas on sign up under certain conditions.
That being said, I'm not sure inconveniencing every individual attempting to sign up is our best approach to combat spam right now:
- Captchas wouldn't necessarily keep all the spam out (if only because you can pay humans to work around them), so we can't rely only on Captchas.
- Captchas would inconvenience every single user attempting to sign up (whereas most of them are not spammers).
We do have other ideas though. No promises on when we can start working on them, though.