I have had to temporarily close the Forum for new registrations because of the increasing number of spammers signing up. I started the Forum by allowing sign-ups with no verification except a “Captcha” image on the sign-up form.
For quite a few months there were no problems. Then forum spammers started to target the Community Forum. [...]

“Split testing” is a marketing technique which helps you to improve the conversion rate on your web pages. It’s an established technique in the “real” world, but the web makes it much easier to use.
Basically, you set up two versions of a page with just one element changed.. say, the headline. You then use split [...]