In reviewing today I happened across this question which has been closed as off-topic. The question is a pretty simple one about Nginx modules and administrative control panels, and I'm baffled as to why it was closed, so I come here seeking enlightenment. It doesn't trip any of the FAQ issues, it's not a home-use question, and it's not a shopping question (that I can tell). Ideas?
It was likely closed to due a strong smell of shopping, specifically the 'if-exists' subtype, which we're sensitive to around here. While there may be a single such module, if there is more than one then we're into subjective territory and it becomes a bad question.
Nginx, it's installation, configuration, management, trouble shooting etc are definitely topical.
I think that the question you link to has fallen foul of being a product recommendation/shopping request which don't go down so well.
I usually pick "Not constructive" for shopping questions, because I think it's a better fit than "off-topic."
It's worth keeping in mind that only one close reason is shown, but the 5 people who voted to close didn't necessarily all pick that reason. It's not uncommon to see 3 votes for one reason and 2 for another and in an extreme case, if 2 people picked OT, and the 3 others picked 3 different reasons, it'd still show as being closed Off-topic.
I disagree with the off topic designation for the following reasons:
Part of our jobs as sysadmins is to review and compare the different tools that are available for us to achieve our goals. When I'm faced with implementing something, I often want to obtain a list of possible solutions so that I can compare and make my own judgement as to which satisfies my needs the best. If we had no way of shopping around, I daresay we would have a very difficult task of being sysadmins.