@Omniraptor ah yes! Probably that's why.
Actually the whole original post was sent via Mastodon.
I tend to write posts that I share to my Mastodon followers and then at the end I mention a Lemmy community if I believe the community would also find it interesting.
@Omniraptor in theory Mastodon will show a "read more" button for longer comments. Top level posts sent from Lemmy often require clicking the link to view them in full and content isn't ordered by votes because they don't exist.
So, it's a bit messy to read Lemmy from Mastodon, but posting something and then replying to comments on that thread is really easy.