If the recommended questions are closed, then why bother?
Maybe the recommended questions should be for questions which are still unanswered? Get people more involved with the site. Or suggest questions from a category that the user hasn't been as active in. This would encourage people to get more involved on the site :)
Closed questions are excluded from the Recommended Questions algorithm. However, since it is not refreshed every time you post an opinion, you might see one or two closed questions in there. If you notice this happening more often though, please just let us know. Taking screenshots of the issue is always helpful to us as well. :)
Not just recommended questions though. Most questions here are only helpful to the OP of that question anyway, so might as well allow them to delete them themselves or have someone decide if the question the OP wants to delete is very valuable to other members of the community or not. By all means, please delete the closed questions without any replies.
And stop auto-closing them so quickly after MHO is awarded. I think a lot of Askers don't even realize that. But I'm ok with questions that are inactive for 48 hours and/or like a week old closing and coming off my feed.