I was just asking myself the same question. This is my first try to highlight something using highlighter.com
Discussion
Looks like this is the "raw" highlight and the quote is here
This is why we decided to spec quote highlights, this looks so bad in damus 
tbh I haven't used much time to read up on the highlight nip. Did you spec it for Damus in your own dips repo or in the NIPs repo?
We have a PR open on https://github.com/nostr-protocol/nips/pull/1438
I will DIP it
The r tag missing in highlights is a regression on highlighter.com
Pablo said he is going to fix it.