Don't edit to bump. Edit to improve. Flesh out your question - add what you've worked out so far. By adding what hasn't worked, and what has partially worked, you kind of help get closer to a solution.
Its worth considering as well, sometimes questions just are really really hard, and the right person might not have come across it yet. Waiting is also often an option.
I actually had the same issue with a specific question on Super User. I went through multiple improvements, more than one bounty, and eventually got an answer that worked (though, razer changed their API/firmware later so the selected answer might not work on all keyboards).
The best way to get an answer is to also spend the time to work it through, document, and help others help push you past the line.