I'm happy that Kusalananda answered separately regarding comments:
If you see a comment left by a moderator (or a high-rep user for that matter), it should not stop you from using your own head.
I'll add two separate points.
The first echoes a comment by both terdon and Kusalananda: that mods don't have a "community" vote -- it's a one-touch, gold hammer, vote to Close or Delete. If the moderator (or gold badge holder) isn't sure enough about that decision, they might silently abandon the post (close the tab; skip the review) or they might leave a comment.
In situations like these where the author appears to be attempting to answer the question (it's not spam; it's not a further question or "I'm having this problem too"; it's not completely irrelevant to the question, etc), it's a judgement call. I see this particular case as similar to an awk answer to a sed question. It doesn't answer the literal question at-hand, but it might be helpful to someone else who's in the same situation (perhaps they believe the other browser won't crash). I've added comments to similar posts asking the author to more closely address the question. Maybe they do, maybe they don't. I trust the community reviewers to decide once they see it in the queue. It turns out OK either way: if the answer stays, it has some comments asking how it can apply, and maybe the answer helps and maybe it doesn't; if the answer is deleted, the author got a notification (the comment) and has a chance to learn about the expectations here. I believe there's also a technical wrinkle here where a mod-deleted post can't be undeleted by the author, so if that post was negatively-scored, it could affect their future ability to write answers.
Separately, specifically for this case, Kusalananda may not have been viewing that post in the review queues. An actual review from the queue would end up with one of:
- Looks OK (and I believe the post would exit that queue)
- Edit (ditto)
- Delete (with an accompanying stock comment, such as "This does not..." - From Review - $author $date)
- Separately-posted comment and "Other Action" (I'm not sure what this does to the queue).
- Skip (leaves the post in the queue)
Since you found the post in the review queue about 17 hours after Kusalananda's comment, it would be safer to assume that they either found the post independently or made no decision in the review queue. I don't think you should "assume that the answer just looks OK". Additionally, if it's still in the queue, then feel free to review it!
Having a healthy community such as this one means that we have users such as yourself who take the time to curate the posts that might need extra attention. I think these review queues do a decent job of (mechanically) finding posts that might need extra help. Sometimes these posts are easier to take care (deleting spam, deleting NAA's, etc), but other times these are newer users who haven't yet climbed the learning curve of Stack Exchange. I think it's good to give them some guidance and some time to learn. This becomes a timing issue where a well-intended comment can become a confusing landmark. Use your judgement in the review queues! If the author hasn't responded in a "reasonable" amount of time and the answer still does not meet the site standards, then vote to delete. If you feel strongly enough about the post but it's only been a few hours, maybe revisit the review item later.
One-off responses:
If some mod actually reviews an answer it should no longer show in the review queue. from your comment
Yes, if that review action was something concrete like "Looks OK" or "Delete". This is the "Stack Exchange" definition of "review". Perhaps this is being confused with the English definition of "to go over or examine critically or deliberately", which is what Kusalananda did and it's what each reviewer should do -- but that's distinct from an actual Review Action.
Can't we just assume that if some moderator comments a question already asked to be closed and does not close the question then the moderation team does not think this question should be closed?
(from your updated question)
Generally speaking, no! Best-case, that person has seen the potential issues with the question and is giving guidance to the author for how to rephrase the question to keep it on-topic and open. If the author does not update the question, of course it should be closed. I believe the SE team is working to improve the guidance that's given when a question is closed, but that's yet another learning curve for new users. Free-form comments can be much more specific to the post and its problems, giving the author a much better chance of success. There are too many other cases to consider, such as a comment that says "I think this should be left open" or other variations. Of course, a moderator (or any other user!) may think the question should be left open -- they may even answer the question! -- but I think I can speak for the current moderation team when I say that we consider our one-touch voting privileges very carefully, and it's our preference that the community does the voting.