About two months ago, I asked the question Can I put "Greetings" at the end of an email, and if so, how?, because I was having trouble to find the right wording and it seemed that English Language Stack Exchange was the right platform to ask for language advice. I also used the tag [word-choice] which states:
This tag is for questions about choosing the best word for a particular context or meaning.
This seemed to be a perfect fit for a question asking what phrase to use in the context of an informal email.
However, my question was closed fairly quickly (although I got good answers), with the reason taken from a comment by Kris:
This question is not about the English language. OTOH, it may open the floodgates to 'opinions.'
The closing statement was:
This question does not appear to be about English language and usage within the scope defined in the help center.
I disagree with that, because to me my question seems to fit the [word-choice] tag perfectly and I was asking for a phrase to use in a specific situation. I was directed to the help center, but there I could also not find anything wrong with my question.
The user choster added some related questions that were going in a similar direction, but not answering my question, such as Is it appropriate to use "You're welcome," followed by my name in closing an email?, Which valediction should I use with my boss? or What complimentary close to use in continuous formal email?. These questions were not closed.
I have asked why my question had been closed in a comment, but as it was the sixth one and the question had already been closed, I think no one read it:
A question to the moderation: Is asking how to write a certain phrase (like how to end an informal email) not "word choice"? I also seemed to get quite good answers. Most of the questions posted above by @choster are similar (but not answering my problem) and are not closed.
Long story short: I'd like to know when a question asking for [word-choice] is allowed and when it is not.
In my opinion, since I was asking for advice on a specific situation, my question should be allowed, and I'd like to ask someone with the power to do so to reopen it. Otherwise, please explain to me why the question should not be allowed.