I would like to see a friendly reminder email being sent out to users who asked a question but it hasn't received any answers in over a month. It would be at most one email over the course of a month, and a question would only be included in this type of email once. Something along the lines of:
Dear SO/SF/SU User,
You asked the following questions which have not received any answers over the past month:
Perhaps you've managed to find a solution to this issue you can share with the community. If that's not the case, you can put a bounty on the question to increase the visibility of the question to get an answer...
The main reason why is because there's a lot of interesting questions out there that have received no answers at all, many of which I would like to see an answer to myself, but have no idea how to even start tackling the issue.
I did look at this similar feature-request, but I'm talking about questions that have received no answers at all, not those that should have one accepted.