Here is an example where a user has accepted an answer and then edited their question to include a copy of that answer. I asked why and the reason given was that "I've seen many people do that"
This is certainly true (I have seen it too, though I am too lazy to find other examples), so I wonder if there is some good reason for it that I am not aware of.
In my opinion it adds clutter to the question and potentially deprives answerers of reputation if future visitors find a self-contained Q&A without scrolling to the Answers section.
Is this something we should discourage, encourage, or just ignore?