Saw this post on Nostr.
The Nostr-Mastodon bridge publishes all the Mastodon posts to Nostr relays. We used to be able to talk back and forth, but it seems Mastodon blocks comments from Nostr now.
Either way ... we can comment on Mastodon posts on Nostr, and talk all we want, saying whatever we want (literally), but it seems Mastodon accounts don't see any of it now.