I've been getting more spam recently (for the drug that begins with a V and the one that begins with a C), so I've closed comments for all posts older than 30 days. I regret that this shuts off legitimate comments too, but comments on old posts are even more rare than comments on new entries. I've actually been doing this for a while, except I used to do everything older than 90 days. The last comments were on entries in July.
I'm also going to re-instate Bayesian filtering. Actually the Bayesian filter plugin has been working this whole time; I just haven't been using it to determine whether comments get displayed or not. Besides, the filter has been much more accurate of late. It always catches the drug names. (Don't anyone use them in a legitimate comment!!)
So, sorry if anyone's comment gets marked as spam; I'll retrain it as needed. Probably my comments will be filtered more than anyone else's.
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