in reply to
I'd specifically recommend the Captcha::reCAPTCHA module which would give you the captcha functionality you're seeking as well as supporting a worthy project.
Therapy is expensive. Popping bubble wrap is cheap. You choose.
The same name on every site (unless it is taken already)
A different name for every site
The same name for sites I don't care about, but different names on sites I do care about
Different names for sites I don't care about, but the same name on sites I do care about
The anonymous account
Someone else's username
Root, after hacking into the site
Results (215 votes),