The idea is certainly plausible given that the vast majority of initial contributions to an open source project are based on need: http://climate-action.engin.umich.edu/figures/Rood_Library/S...
However continued involvement seems to be usually based on hobbyist motivations, so you might be setting yourself up to not see anybody else jump on board with you long term.
I'm not sure how successful it is, but Crystal seems to have the right idea.
The idea is certainly plausible given that the vast majority of initial contributions to an open source project are based on need: http://climate-action.engin.umich.edu/figures/Rood_Library/S...
However continued involvement seems to be usually based on hobbyist motivations, so you might be setting yourself up to not see anybody else jump on board with you long term.