New comment policy effective immediately

Spam had gotten out of control on this blog recently, to the point where it almost had to be shut down. So effective immediately, everyone will have to enter a captcha to leave a comment. On a surface level, this will make the blog look less popular. But it will save me a ton of headaches and keep the site focused on real discussion (at least this is my hope). I imagine this will make everything easier for you, the readers. Enjoy!