In Esri Community questions, if there is an accepted solution, then that reply gets duplicated and highlighted in green at the top of the post. I find that design to be a bit cumbersome and is sometimes disorienting when you see the same reply multiple times in the same post. Especially when there are multiple pages of comments.
I think I like other designs I’ve seen better. Such as a link to the accepted answer (Esri posts already have this), instead of a duplicated answer. For example, Oracle Forums:
https://forums.oracle.com/ords/apexds/post/select-polygons-that-intersect-points-9091

Could/should that design be improved?