Not that you have to be grumpy, but It's require certain personality to work on single project for years while avoiding complete burnout. I think it's true not

Not that you have to be grumpy, but It's require certain personality to work on single project for years while avoiding complete burnout. I think it's true not just for open source. Also in the beginning it's extremely important to have someone to keep project together and that is also require some dedication. Though most of projects become more self sustainable once community grow big enough.