Defederated by Beehaw, no idea why
Indeed it does. However, comparing it to https://derp.foo/c/hackernews and sorting by new reveals that posts more recent than 5 days ago were never sync'ed. In addition, https://beehaw.org/instances shows derp.foo as blocked.
I'm posting from https://lemm.ee/, I simply set my display name to 'irdc@derp.foo'.