What's your opinion on offering bounties for features?

There are quite a lot of feature requests, and often the answer is something like "Good idea. Maybe someone is going to make it happen and create a pull request." There is nothig wrong with this answer. Your resources are limited, and this is an open source project for a good reason. I wonder, if setting bounties for h5p features might be a good idea.

On platforms such as Bountysource you can describe what feature you want for a particular software product. Afterwards, people who'd also like to see this feature can post bounties, and developers can hunt for that bounty.

Of course, there are pros and cons ;-) Coders might get an extra incentive for creating h5p libraries or fixing bugs, so new people might get interested and the development of h5p might become faster and more diverse. On the other hand, posting bounties could crowd out intrinsic motivation and make h5p more like a business than a community project. People might even become reluctant to contribute if there's no money attached to it. Also, new features should be implemented to the main h5p branch or there might be uncontrolled growth of potentially incompatible forks. This would probably raise questions on when a bounty should be paid. After completion? After integration? That might take time. What, if it's not integrated at all? And, let's not forget that Joubel offers do do exactly that: implement features for payment. It might cut some of their revenue.

There are probably a lot more aspects that could be discussed. I am interested in your opinion on offering bounties for features. What's your experience? What do you think?