Reddit Communities Blackout Site In Protest Of Policy Threatening Third-Party Apps

Dozens of subreddits comprising millions of users are shutting down in protest of API pricing changes that would make many third-party Reddit apps unsustainable.
The planned blackout on June 12 is in response to new API pricing that would cost some developers up to $20 million per year and force many apps to shut down.
Moderators of subreddits also rely on features of third-party apps and fear stagnation of the platform without them.
Reddit has seen protests before, but fears remain that the policy change could permanently damage the site's community and development.
Major music, photography, life hack, and other subreddits have vowed to join the 48-hour blackout, with some threatening to leave Reddit permanently without policy reversal.