@[email protected]

I did exactly what you described you did for Firefish. I think it depends if someone on your Firefish instance has subscribed to that Lemmy community before or not. When I opened the @[email protected] profile I saw all the posts and replies listed and just replied to the post from there.

@[email protected]

Hmm... I wonder if Mastodon only loads the replies from the original instance the post was created on?

@[email protected]

I'm replying to this from Firefish. Also reacted with a 🔥 emoji, so we'll see how that works (if at all)