1. Emojis can help establish common ground between individuals with diverse backgrounds and cultures as they often transcend language barriers, potentially leading to increased user adoption of the Nostr protocol if it offers a richer communication experience than its competitors do not provide emoji support (easier for users who have hearing or visual impairments). 

2. Emojis can help simplify complex messages by providing quick visual representations that reduce reliance on words in some cases, potentially saving time and making Nostr an even more efficient communication tool overall.