Just for reference I'm talking about: Multiuser - can process of background user kept running? Don't judge - not my smartest one, but back then was the first time about fast user switching.
I'm all for clearing up the answers so the best are top. And there is definitely a point how valuable 7 year old computing answers are to questions from today.
OTOH it bothers me to get contacted about a 7 year old question which has a good answer.
I was curious about how the better answers looks and - while it's an OK answer - I don't think it better than the accepted one.
It looks a bit odd that an author of an answer of a current question goes back and makes an old question a duplicate of the one he just answered and not mark the new ones duplicates.
For all I care, my question could have been deleted once I accepted the answer. I'm more interested in the policy.