I think this could be more useful for people who are slightly downvoted, or whose posts just don’t get much attention. I remember a few recent highly-downvoted posts and comments (below −10 or so), and all of them seem to have well-written feedback; sometimes more thought was put into the feedback than the original post (not necessarily a bad thing, but going even further could be a massive waste of energy).
People who provide feedback also have to want to engage. On Stack Exchange, closing a question requires a reason, but mods and high-rep users are known to close poorly-written questions for vague reasons without providing much feedback. An even worse failure mode I see is if users are disincentivized from downvoting because they don’t want to be added to the feedback list.
I think this could be more useful for people who are slightly downvoted, or whose posts just don’t get much attention. I remember a few recent highly-downvoted posts and comments (below −10 or so), and all of them seem to have well-written feedback; sometimes more thought was put into the feedback than the original post (not necessarily a bad thing, but going even further could be a massive waste of energy).
People who provide feedback also have to want to engage. On Stack Exchange, closing a question requires a reason, but mods and high-rep users are known to close poorly-written questions for vague reasons without providing much feedback. An even worse failure mode I see is if users are disincentivized from downvoting because they don’t want to be added to the feedback list.