or quickly closing or not reopening after a carefully written argument
Thats where I think the misunderstanding was, if you look at the dates, many of the closings happened months after the issue was opened and no one posted anything on it, so it would clearly look to be a stale issue, so its reasonable to give a quick "Im closing this because of x" comment.
Often in those cases the person is doing a bunch of cleanup and has to close dozens of stale issues, so writing a multi paragraph response on every single one is a lot of time to put into it.
Then later the issue is re-opened again because it actually isnt stale, it just looks stale, and the cycle repeats as it continues to sit on the backburner.
This is all very normal on any larger project, its pretty common to see issues get closed and re-opened if they are very low priority and sit on the backburner for literally years, and its common to see they have a bunch of short "Im closing this because x" responses as a result.
But, if you look at the dates, you go "Oh, I see, these comments are months apart and not even really a "convo" but more just documentation.