I’ve installed a new plug-in to combat comment spam. I had previously used Akismet and Did You Pass Math?, and I’m hereby replacing the latter (which recently has apparently lost effectiveness; bots must have learnt how it works) with Peter Hosey’s Negative Turing Test, a plug-in he’s been talking about on his blog as well.
If your comment got deleted, this could be why. If your comment doesn’t get through now either, this could also be why. Please contact me to let me know!
Update: I’m still getting spam every few minutes. :-\
Update 2: Following Peter’s advice, I’ve disabled Akismet last night, and no spam has gotten through since. 
Others' Thoughts
Comment on March 18th, 2007 at 8:41 am
Despite its possibly restrictive issues with Opera (at least as reported on some sites), I’ve done OK with a combination of Bad Behavior and a plugin to close comments after three weeks. I also enabled a mini-plugin that set trackbacks and pingbacks to the moderation queue as well - just in case.
I’ve only had one odd ’stealth-spam’ make it in; I say stealth because it actually made sense for once (looked like your average post), but still in the end appeared to promote a web site.
–TSK
Comment on March 19th, 2007 at 1:07 am
What?! Now I have to know on which continent Germany resides? Surely you don’t expect your readers to have such an extensive grasp of geography…
Comment on March 19th, 2007 at 1:31 am
There’s still hope that humans are ever-so-slightly smarter than spam bots when it comes to geography.
Your Own Thoughts
I'd love to hear your input. Just try to stick to a few rules:
Before you comment for the first time (or, after you have deleted cookies), you will have to answer a little challenge to prove that you are not a spammer.
Comments are written in Markdown.