Six ways to help revive a question are by:
- adding upvotes to it
- editing to improve it i.e. provide additional details or clarify existing details
- offering a bounty
- using the share button beneath the question to advertise it to your networks
- drawing attention to it in the GIS Chat Room (needs Talk in Chat privilege that comes with rep of 20+)
- raising the need for more editors/voters/etc by asking how to get its profile raised by asking here in Meta SE. However, if you choose this one you will need to make a good case why to avoid downvoting. (needs Participate in Meta privilege that comes with rep of 5+)
In the case of the question you linked to I offered a bounty of 50 points (the minimum) and within an hour or so the question now has an answer. Whether or not that answer is ever accepted (which can only be done by the asker of the question) is not as important as whether it starts to accumulate upvotes to indicate its quality.
As someone with low reputation (6) at the moment, only suggesting edits, sharing the question or carefully raising its profile in Meta from the above are open to you, so I hope the value of earning reputation has become apparent. Once 50 rep points no longer seems a lot to give away, it makes drawing attention to questions you want answered easy to do.
Our help page at http://gis.stackexchange.com/help/no-one-answers provides similar advice.