Review docs for issues and triage bot

[FMorschel]

There are comments in old issues that never got the triage bot review, that ask what should happen then:

Hey, I saw that issue #198381 got a "VSCodeTriageBot" response and added to the backlog. How do we do that for old issues that existed before the TriageBot? I know it's bad GitHub form, but I'm tempted to re-create this issue (linking to this one) so that we can ping the TriageBot with our votes. I think this vital feature has fallen into a black hole.

Originally posted by @J-Sorenson in https://github.com/microsoft/vscode/issues/43026#issuecomment-2142608063

Some comments in other issues that mention the triage bot closing the issue without anyone revisiting it and reading the new comments for consideration:

@bpasero I think you should train your Tiragebot better. Closing this without acknowledging any of the later comment seems questionable

Originally posted by @escamoteur in https://github.com/microsoft/vscode/issues/203326#issuecomment-2048227865

As well as a comment raised by me in this same issue questioning what happens when an issue is closed and then later gets to the 20 up-votes mark:

What happens now that it has already gained more than those 20 upvotes? Does it need a new mark? Will this not be considered then? If someone else wants this feature should they forget about it or should they create a new one? Those are not clear to me. Is there some place where these questions are documented (like a FAQ or something)?

Originally posted by @FMorschel in https://github.com/microsoft/vscode/issues/203326#issuecomment-2151128502

Also, the docs mentioned by the triage bot don't ever say anything related to any of those things.

Summary

I guess that the questions here would be:

• What happens with old opened issues that never got the triage bot review?
• What happens to issues closed that people are still interested in? Should they get a new mark of up-votes or be recreated (I agree with @J-Sorenson and consider this a bad GitHub behaviour)?

I'm not sure this is the exact place for this, but if it isn't please let me know where it would fit.