What sorts of spambotting? I've gotten about half a dozen to a comment about being charged by a tortoise. The commenter is legit, but the replies to her are bizzare.
Almost plausible looking sentences in older posts, but if you look at the originating account, there's one computer-generated nonsense entry. I don't know what they get out of it.
no subject
Delete, ban and report.
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I suspect there are some google links in there, just as with comment spam to other sorts of blogs.