Noticing that some spam comments were getting through, I decided to upgrade the Spam Karma plug-in to version 2.1 (from 2.0) and Bad-Behavior plug-in to 1.2.4 (from 1.1.4).
As you can see from the statistics at the bottom of the page, a popular weblog like this gets around 5 times more attempted spam comments than real comments, and its an escalating conflict. Pretty soon, (if Steve will let me) the WordPress software itself will be upgraded and we’ll probably have some sort of CAPTCHA plug-in implemented to keep the garbage at bay.
I have relaxed, slightly, the number of comments allowed to be made in a certain time before Spam Karma starts getting interested, but we’ll have to see how it goes. If there is a problem then let me know.
I’ve no doubt that RealClimate probably has similar protection (although it’s also still running the scientific skepticism plug-in as well ;-) )
It’s all about the reality of the Internet in the 21st Century – while there is an economic incentive to do so, there will always be people ready, willing and able to subvert the purpose of business for their own ends. I never realised until recently, for example, that people in the Far East are recruited to play in multi-player games like World of Warcraft for 12-hour shifts 7 days a week, simply to collect virtual gold and magical artifacts that can be traded for real money by desperate cheats.