While reviewing first posts, I came across this answer, which uses C++ code to attempt answering a C# question.
Clearly, this is not a correct answer, since the code won't compile in C#. However, it's also clearly a good faith attempt at answering the question. Aside: the upvotes came from review queue upvoting robots.
Other than downvoting, commenting, and posting here (all of which I've done), in the general case for this sort of situation, what action should be taken?
The posted code might be mungeable in to a C# answer without changing its spirit, but that would involve more substantive changes than I feel is appropriate for an edit.
I don't think "not an answer" flag is justified, since it is an answer, albeit a severely misguided one. Seems like a custom moderator attention flag would be appropriate, but I decided to ask here, to get more robust feedback than I would from the flag response.