Make it more human friendly, this is nice and simple:
Get rid of "captcha", it may be thought of as a good way to stop spammers, but it can be very difficult to see many of the characters displayed in poor light, or on a small screen, or when mobile.
Comments
Hello!
We need to have the captcha check, to prevent SPAM. We do not have the capacity to remove them all ourself.
However, if you don't like that, either start contributing code to the http://drupal.org/ project or provide some example code (for our website) [1], which will both, prevent spam, but does suit your needs.
Cheers
[1] For code examples please push the code to lp:~yourname/openlp/<your branch>
Sorry, I've no code to hand, but a simple solution is the "human confirmation button" - pops up for a random time and needs to be pressed on the time expiry and held down for a short period of time rather than the usual "quick click".