The Mozilla WordPress installation was upgraded a couple of days ago. I had a simple captcha plug-in enabled before this (I don’t remember it’s name). It asked you to solve a very simple arithmetic problem (e.g. “what is 1+1″) before your comment would appear. It was very effective at stopping spam comments. Prior to me enabling it I would get numerous spam comments per post which I had to manually delete.
After the upgrade, this plug-in doesn’t seem to be available any more. There’s a plug-in called “simple CAPTCHA” which is a picture-based one. I turned it on but some people reported problems, there were some double-posts, and when I tested it the captcha image didn’t load properly. Furthermore, spam comments still seemed to be getting through.
Any suggestions? None of the other spam-fighting plug-ins seem appropriate. Really, I just want my simple arithmetic problem captcha back. If I can’t get something working I might have to require people login before commenting. But I’d rather not do that, as it will deter some commenters.