Without any doubt Tim Wood, the creator of the awesome moment.js library, has done a lot for the community. It's really a shame that the constant pressure of maintaining the library has taken it's toll.

The correlation between Open Source and burnout is no secret, and I am not immune to it. ... Seeing bugs and issues continue to roll in and being mentally unable to address them has led to feelings of failure and depression. When looking at the moment project, I could only see the negatives. The bugs and misnomers and mistakes I had made. It let to a cycle of being too depressed to contribute, which led to being depressed because I wasn’t contributing.

https://medium.com/@timrwood/moment-endof-term-522d8965689