One of the strenghts of stack exchange search is that questions/answers can be sorted/ranked by criteria other than views (which makes it stronger than using Google as a search tool). The number of upvotes that a question or an answer received is a useful for picking out a good answer in the search, but whether it has an "accepted answer" or not is not useful because many good answers are simply never accepted. Some users seem to "abandon" their questions. For example, I found the following question with excellent answers today:
The user never accepted any of the answers. Looking at the user's question, the user only ever asked that one question and then seemed to stop using stackexchange. Could a certain threshold of number of upvotes be used to mark a question as "answer" for the sake of internal search engine? Or something to bypass of inactive user for more than, say 6 months?
For example, in a search, the "answered questions" are highlighted in green so I would be more likely to choose those when I am searching for an answer to my specific query. See this screenshot below: