Ditol on Nostr: I have no filters or blocks. And I don't know where to check the filters/blocks of my ...

I have no filters or blocks. And I don't know where to check the filters/blocks of my instance, but the original post was perfectly visible on my instance, so there should be no limitations on the replies to it, right?
And besides that, I see this problem constantly. I get only a fraction of posts displayed when I visit someone's profile and I see only a fraction of replies to posts from profiles I follow.
Often it looks like I am the only person reading the posts. Very unsocial UX.