From what I've seen, if a comment is technically incorrect, it not only does it get downvoted, but someone usually posts the correct solution (or at the very least there is a comment about so-and-so's solution doesn't work). I don't think there is a problem here with technically incorrect posts being seen as legit by readers.

In reply to Re: Encouraging comments for downvotes by xorl
in thread Encouraging comments for downvotes by disciple

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