This question currently has some re-open and delete votes on it: What static analysis tools are available for C#?. There is some debate between users in the comments about whether the question should be re-opened or deleted. I'm posting this question to formally begin that debate on Meta, per the conventions defined at Community-led deletionism: a protocol for sanity.
Currently at 40k+ views, with 176 upvotes on the question and 168 upvotes on the very detailed, accepted top-answer, it's definitely a popular question that contains useful information. However, being a question that asks for software recommendations, it's definitely not a good fit according to Stack Overflow's current question guidelines:
Questions asking us to recommend or find a tool, library or favorite off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam. Instead, describe the problem and what has been done so far to solve it.
In addition, you could make the argument that the question provides a bad example for other users: if this question isn't deleted, why is it not okay to post more questions asking for software recommendations on Stack Overflow? Jeff makes a similar argument in The Trouble With Popularity. Though he makes his points in reference to popular "fun" posts, I think what he argues could be applied to any off-topic question as well:
Broken windows. Every ‘fun’ post users see is an open invitation for them to participate in the fun by adding their own fun question or answer. The stuff spreads like kudzu! Pretty soon the entire site is overrun with nothing but that kind of fun. And even if you grandfather a few in, you’ll enjoy neverending requests asking why their fun question or answer has to be removed, while this one over here is allowed to remain.
This question was already closed as off-topic because it's a software recommendation question. I think it should be clear that it's a waste of everyone's time and energy to re-open it, because it will likely soon be re-closed again. So, the question now becomes, should the question be deleted, or "locked" for historical preservation?