Usually if the original requester is satisfied by a solution, as here, we don’t add the request to the system. unless they change the request or want a better solution.
It’s vague as to what your preferred solution should be. All I see is a use case.
As I asked, should that solution only apply to export multiple?
You never yourself said that you supported this request, so I assumed you didn’t. So if you don’t give it a +1 and no-one else does, I would assume it now has no votes (because Frew is satisfied).
See above.
Yes if they have sufficient detail and it is clear that someone other than the original requester is now voting for it. There must be many ways the request could be met, such as by a multi-text clipboard. Normally we triage the requests here and end up with a focused request that has some implementation suggestions.