registering a user with email confirm and captcha?

Does it make any sense to include a captcha when registration alre开发者_如何学Pythonady requires email confirmation? any added benefit or just a waste of effort?

Neither will prevent current bots from getting into your system if that is your reason for doing these. Usually email confirmation is done to validate that the user gave a correct email address if you have need to contact them (or spam them). I don't see the value in adding a captcha to that.