You're right that there's often lists that people make, but usually ends up outdated. Often in these cases, the incentives for reading the list are usually more than those maintaining the list.
People in the earlier days of the internet imagined a better world brought about by immediate and unfettered access to information. Many have tried to make freely available information on the internet. Wikipedia, IMDB, and Freebase are direct products of this school of thought. However, we can only count these on one hand. In fact, most free data projects languish and have a hard time getting off the ground.
What we all discovered as we built out the web is that only some kinds of data can be maintained for free sustainably. Sure, if it's something that engages fandom, like all the different types of starships in star trek, people are intrinsically motivated to update that list. But if it's something that's considered dry but useful, like the tax rates in every county in the US, or points of interest on a map, there won't be enough people with intrinsic motivation to keep that updated.
As builders and users of the web, we've compensated by subsidizing that dry/useful data, typically with a company selling advertising or subscriptions in adjacent services. The implicit deal we make as users is if the company provides the data for free, we're ok with the company accrue profits off the data we help curate. Recently, the sentiment has been growing that this may have been a raw deal for users of the web as a company's profits accrue to the point of immense power over our lives.
What I think the builders of the early web got wrong, was that certain types are data needed to involve other incentives besides intrinsic. While we've found other ways to incentivize users in the 2.5 decades of the internet, cryptocurrencies now give us one more tool in our toolbox to use economic incentives to design systems that converge on the curated lists that are regularly updated.
With this new toolkit, we may be able find another way to provide freely curated data without using subsidization. Instead of the value capture accruing in a single company, we may find a way to sustainably distribute it amongst the curators.
We're not as sure subjective data is a good first fit for TCRs. With any startup, it's better to find a niche application that's a great fit, and we think we've found one in objective data for the crypto space.
I think another aspect that might be exciting for you to think about is if you're able to link the data between registries. It's a non-obvious aspect that almost no one asks about.