I have been running a Drupal 7 site, and got lots of user signups that were obviously 'on the make' so I installed the Captcha module and reduced the number quite dramatically... BUT... There are still a good number getting through...
What is your experiance of Captcha and which method do you find works best:
... HappyCaptcha (which is a new one to me, I'm just trying it now)
If you have another route to keep your users 'real' please also post too.
Hope you can all help