a kind on each tag?? why?
no, I was just thinking literally a `k` tag so that I can do
`{"kinds": [30001], "#k": ["9802"]}`
to get a lists that claim to have 9802 kinds tagged
but now that I type it I don't like it and now I think I should just use a specific kind number for 9802 events (39802? 🤷♂️)