My conclusion as to why Payjoin gets next to no coverage, despite the fact that you can already use it. 
Discussion
nostr:nprofile1qyfhwumn8ghj7ur4wfcxcetsv9njuetn9uq32amnwvaz7tmjv4kxz7fwv3sk6atn9e5k7tcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtcpz3mhxue69uhhyetvv9ukzcnvv5hx7un89uq3zamnwvaz7tmwdaehgu3wwa5kuef0qqspnlha0uuujmf07ahc0amz0tnez3dujuwc4v3jq5q9jwd94yfmctc4hvj3f just had a good pod about it
I listened to it the second it dropped
It has better fees?