Bug bounties are a great and ethical source of income for FLOSS projects that are a solution:
+ for users who use GNU Guix, but doesn't know GNU Guile to e.g. get their wanted packages packaged.
+ for developers who work on multiple projects and prefer to get an issue outsourced to third party to better utilize their resources.
+ for community by enabling the community to reward the developers for finishing an issue that they care about.

Proposing GNU Guix to integrate bug bounties and set a flexible fee for each transaction (ideally using monero) to help support the project while being a safeguard to resolve conflicts.