New BotBlock plugin
I've just uploaded a new version of the BotBlock plugin. This one adds two options. One makes the comment check depend on a cookie, so user agents that don't accept them will be blocked. The other option blocks any comment that contains markup for HTML or BBcod-style links. Since markup isn't allowed in comments anyway, it's a pretty good bet that comments with links are spam. Either that, or the commenter wasn't paying attention.
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