I am not a legal, so can't comment on legal things. However, I have already responded elsewhere here that this feature has nothing to do with licensing or ownership and was added for those that want the attribution. I understand the desire to see anything Microsoft as bad and evil, but we are really just trying to make a better experience.
I'll respond to the third one, thanks!
> are you interested in my opinion on (n)vim?
The first comment is three short lines. One of them is the extremely reasonable and relevant question of where else this has happened in VSCode.
And you think that the commenter is wondering about your opinion on (n)vim? That is what you think they are interested in?
Could you just, like, ignore the signature if it is distracting you from the only other line that has a question in it?