[I asked a question][1] regarding computer clusters. The question was apt for the community wiki, and was made into one. The first response that it received was good and I upvoted it. However since then, the question has not recieved any further answers.

Should I have waited before upvoting so that it stayed a bit longer in the unanswered section. 

Or is offering a bounty the only way?

[1]: http://askubuntu.com/questions/46964/what-to-do-with-a-cluster-of-old-computers-running-ubuntu