Other is a place holder because I’m only showing the top 30. So the 7% in other are a mix of topics shared by <0.77% of all notes. At 50 topics (in this photo), you’ll see other drops down to 2%. At 100 topics, it’s barely visible and unlabeled. 

https://image.nostr.build/3b11cf9b865e6a45f29c949900b5c142ff46437fa433e0b59a76e8d12d0a7a6e.png