Inkhaven is a 30-day residency where one has to publish posts every day, as part of an effort to grow stronger as a writer. While this has produced some excellent posts it also produces a fair bit of noise too, and also many more hastily-written or experimental posts than usual.
Inkhaven-like posts emerge when other people try to imitate this manner on a smaller scale (e.g. Lightcone team members doing their own 1-week writing stints, or 'HalfHaven' where remote LessWrongers aim to post 30 posts over the course of two months).