Yes, but the point is that "knowing" is cheap, doesn't require any code and can be just slurped from someone else's registry.
Discussion
Turns out maintaining such a registry is not a task easy enough that can be done in 15 minutes.
I got it started here: https://github.com/fiatjaf/alts
If someone else is better at dealing with AIs than I am maybe you can try making it more useful because aside from the kinds I manually edited most are very useless (well, actually they're not entirely useless, since they have the event kind "name", which is something).
I think we should probably remove the {{pubkey}} and {{created_at}} from the templates, as clients can just always show these anyway, an in a nicer manner than a vague text, since they're present in all events.