[equity space]

It's not difficult to get passed CAPTCHA's with an automated service. If the CAPTCHA is too difficult then it just refreshes and asks for a new one. I at times have problems reading those, especially with caps/ lower case.

If the intention is to keep SPAM bots out then the best solution is to have a questionnaire during the sign up process. There isn't an automated service that can get passed this as of yet.