The last comment is locking the issue because too many people are responding saying the same thing. This comment makes me want to reply and say the same thing too, but I can't now.
I think this is one reason GitHub rolled out the "thumbs-up" reactions, too many comments just state "+1", which pollutes actual technical discussion, but at the same time it is crucial to know if many people have the same issue
Locking a discussion with zero-unreasonable responses as "too heated" is bad optics, but I think locking the discussion is a pragmatic decision, as the NPM team has been alerted about the issue and any meaningful comments would get lost in the noise otherwise.
One of the last few messages before that, by wgrant, was helpful in solving the problem. They might have missed that if they had closed the thread a little bit earlier.