Why Yat? I can already use emojis in an ENS domain.
ENS is great, but it has no limit on what can be registered. This will result in a nightmare for emoji ENS owners with regard to phishing attacks.
Yat takes this into account and has special handling for skin tones, red heart colors, and much more. Yats can also be used for self-expression where ENS cannot.
Additionally, ENS is a less-than-ideal user experience for non-crypto users. Yat is built for everyone on Earth, not just crypto folks. For ENS to actually do what Yat does, it needs to be re-written from scratch.