There are a steadily growing number of questions which have perfectly reasonable answers which appear to have been orphaned in that the original asker is either:
- No longer using the site
- No longer using that login (perhaps it's an anon one that they no longer have the cookie to)
- No longer interested in the question.
- Feel the question isn't actually answered.
I suggest something along the lines of:
Going through all un-accepted questions with at least one answer with N upvotes and no comment on them from the asker and no activity within X days:
'pinging' the asker to indicate that they might want to take action themselves (editing the question to be more clear or commenting on the current top answer as to why they feel it isn't what they needed.
Repeat the search again in 1 week, the ones that have no been modified are then auto-accepted by a mod in some identifiable way 'community accepted' for example. This can confer a lesser (or zero I'm not fussed) rep effect than a proper accept.
The primary motivation here is to get the 'unanswered' view to give a real reflection of the questions still needing attention.
This would be a process that can be repeated every so often.
I suggest as initial values for discussion 14 days for X and 3 votes for N.