user9943: The title looks like this question on meta How to deal with posters of consistent poor quality/incorrect answers but mine is more straightforward.
What to do with incorrect answers? Often they can be flagged as 'low quality' as rightfully commented in the linked question above. However, now and then it occurs that someone posts an incorrect answer but with acceptable quality content-wise (mostly not great, however, as it is incorrect :-). I mean, the facts are there, it just isn't applicable to the question. For example, I saw a question on peripheral adaptation and the answer from a first-time Biology user went about a somewhat distantly related process in the cortex. From a physiological standpoint an incorrect answer.
Should one:

Leave it alone and just comment; and/or
Flag it for deletion; and/or
Downvote? (somehow I don't like downvoting 'nice-tries'). 


user3624: If the issue is factual disagreement I don't think flagging is a useful way to go. This would mean that moderators would have to evaluate strength of evidence and factual content to act on the flag, and this is not a viable option in the long run. To me, answers that are factually incorrect should be commented on and downvoted, and a better answer should be provided instead. If you can point out why an answer is incorrect you can most likely also provide some sort of answer that at least points in the right direction.
However, if answers are downright poor, as in making large claims without references, or with really poor language, formatting or logical inconsistency, a flag can be appropriate in my mind. The same is true in cases where the answer in clearly answering a different question than the stated one, even though this can sometimes be tricky to judge if you do not know the field well.

9943: <p>The title looks like this question on meta <a href="https://biology.meta.stackexchange.com/questions/767/how-to-deal-with-posters-of-consistent-poor-quality-incorrect-answers">How to deal with posters of consistent poor quality/incorrect answers</a> but mine is more straightforward.</p>

<p>What to do with incorrect answers? Often they can be flagged as 'low quality' as rightfully commented in the linked question above. However, now and then it occurs that someone posts an incorrect answer but with acceptable quality content-wise (mostly not great, however, as it is incorrect :-). I mean, the facts are there, it just isn't applicable to the question. For example, I saw a question on peripheral adaptation and the answer from a first-time Biology user went about a somewhat distantly related process in the cortex. From a physiological standpoint an incorrect answer.</p>

<p>Should one:</p>

<ol>
<li>Leave it alone and just comment; and/or</li>
<li>Flag it for deletion; and/or</li>
<li>Downvote? (somehow I don't like downvoting 'nice-tries'). </li>
</ol>
 3624: <p>If the issue is factual disagreement I don't think flagging is a useful way to go. This would mean that moderators would have to evaluate strength of evidence and factual content to act on the flag, and this is not a viable option in the long run. To me, answers that are factually incorrect should be commented on and downvoted, and a better answer should be provided instead. If you can point out why an answer is incorrect you can most likely also provide some sort of answer that at least points in the right direction.</p>

<p>However, if answers are downright poor, as in making large claims without references, or with really poor language, formatting or logical inconsistency, a flag can be appropriate in my mind. The same is true in cases where the answer in clearly answering a different question than the stated one, even though this can sometimes be tricky to judge if you do not know the field well.</p>
