Reposts are broken on Nostr. Clients (anything I used) render the same note many times in the feed, instead of aggregating it into one and maybe showing the list of latest npubs who reposted it at the top of that reposted note. If there are many npubs that you follow and that are reposting the same note, you may end up muting the note or the poster, because it becomes very spammy very quickly.