I have seen a problem on AskUbuntu. Many times, people forget to mark an answer as accepted, even if its the **only one and it does work**. Is there a way to add a seven-day reminder like "Mark an answer in [this question] as accepted!" Maybe an inbox notification:

    Hey! You forgot to mark an answer! Come back and mark one that works!

Would this be
a) doable
and
b) practical ?

I'm just thinking that there's a lot of reputation missing because people aren't marking working answers as accepted.

This is like http://meta.askubuntu.com/questions/2869/encouraging-new-users-to-accept-answers

but, even 1rep users (the abandoners) should accept answers. Maybe an email reminder (okay, this _may_ be too far)?