Remove "accept answer" function on Questions plugin

The Q&A plugin is great but I really don't understand what the "accept answer" tick thing brings to the party. I don't really want people to have to vet their own answers, that's what the voting is for.

Is it possible to remove that function and simply hide any answers that get a negative number? E.g. if I post something stupid and it gets downvoted by the community, it would be great if it just got hidden, rather than me having to accept answers.