The Donut project is currently maintained by a pseudonymous individual or team. The original developer of the community point system is Carl Larson — a moderator on the /r/ethtrader subreddit and an early hobbyist Ethereum developer.
At some point, an internal development team at Reddit took an interest in the project, but it remains unclear to what extent Reddit’s R&D team had in its further development.
Beyond Carl Larson, there is currently no clear indication of who else had a role in the success of the project — other than an individual Reddit user by the name of “Shouldbdan,” who has been instrumental in the continued success and growth of Donut, and is responsible for creating the bridge between Donut points and Donut ERC-20 tokens.