For the most part I feel very much at home on the Hachyderm Mastodon server; it’s probably the best social media experience that I can remember having and I have had the pleasure of interacting with so many cool and impassioned people there.
Hachyderm implements the default 500 character post limit which is hard-coded into the Mastodon codebase and as of writing these, seems unlikely to ever be made configurable.
Every now and then, especially when adding summaries to long (1hr+) live programming videos that I share across the Fediverse, I come up against that limit.