Q:

What can be done about people abandoning questions?

Possible Duplicate:
Unresponsive askers abandon questions 

What I mean by people abandoning questions is people who post a question, get several replies, maybe post a comment. Then when someone asks for more information the OP never replies. It seem to happen quite a bit. They are visiting the site because they keep asking questions with more or less the same outcome. This is typically people who have a very low acceptance rate.
So what can be done about this?

A:

Leave a comment on the question for those people. If they actually do visit the site, they'll see a notification of a new comment. If they care at all, they'll respond, either answering your question or confirming that they solved the problem a different way. If that's the case, kindly ask them to post an answer detailing their solution and accept it when the system will let them do so, informing them that this is necessary to mark their question as "resolved".
Otherwise, don't worry so much about it! They're here to beg you for help. If they don't want to help themselves, then I can't see how there is any way that you can help them, either.
Remember that participation on this site is completely voluntary. There's no way of cajoling users into participating more actively. If you see a question that you think has been completely abandoned and poses no redeemable benefit for future visitors to the site, please flag it for moderator attention.

A:

You can't make people participate. Hell, StackExchange doesn't even require a registration process. They could use the email given to nag the user after a certain amount of time of inactivity, but I'm not sure that'd be fruitful.
If you have a good answer, you'll accrue upvotes as other folks find your answer helpful or useful. All that is left to do is bask in the glory of unrequited love!

