https://techcrunch.com/2023/06/19/reddit-communities-adopt-alternative-forms-of-protest-as-the-company-threats-action-on-moderators/

Multiple subreddits are adopting alternative methods of protesting like publishing only one kind of post, changing the topic in focus, and days when the community turns private.

A lot of these communities took part in the Reddit blackout from June 12-14 to rally against Reddit’s API rule changes, which could effectively kill a lot of third-party apps. As the company — and its CEO Steve Huffman — decided not to make any changes, subreddits started thinking about going dark indefinitely.