isn't yours tied to crypto and AI?

I'm not convinced the reason is technical. Yes, the total Ethereum chain state is not tiny (a few TB I think). But if you're only interesting in ENS domains, you don't need to store all of Ethereum, you can just receive new blocks, filter the relevant domain change events and only index that.

I suspect the lack adoption might rather be because of:

- DNS being "good enough". Rug pulls as described in this article are sadly possible, but not frequent enough to motivate enough actors to work on the switch

- The stigma attached to crypto. Which is understandable given the number of bad actors trying to make easy bucks with false promises. But it's also a shame, given that this actually seems a perfect use case: the code is simple enough, and as far as I know, only a blockchain can guarantee a specific code will be executed without relying on a third party being and staying honest (in others words, true self-custody of a domain name).