Is your feature request related to a problem? Please describe.
For users with a lot of posts, Mastodon sometimes throws 422 errors when trying to fetch their profile.
Describe the solution you’d like
The outboxes should be paginated to avoid being too long.
Describe alternatives you’ve considered
None, this is the standard way of doing it with AP.
Originally reported by email@example.com (their profile is affected by this bug).