idsera on Nostr: See this: ...

quoting nevent1q…a2q9

Because in nostr, getting the number of replies and reactions requires fetching a large number of events. It's not like traditional centralized services where you can simply retrieve a number. To avoid unnecessary bandwidth usage, Jumble doesn't fetch this data until you click to view it.

Some clients can show these numbers without wasting bandwidth because they use services like nostr.band, or, like Primal, they have their own servers aggregating the data. I prefer not to overly rely on centralized services.