Oh, I thought of something else we can do to make it more simple. Let's use ids each time the feed is updated, something like 4e55ae60f5583112bb1e63c41b675bd72dd64ed6c6e680c78ba1896f70572051, but that number doesn't actually do anything, you can't really share it, you have to encode it using the super simple NIP-19 encoder. Then you can share this "note1fe26uc84tqc39wc7v0zpke6m6ukavnkkcmngp3ut5xyk7uzhypgsm2vk57" but it only works inside of certain apps. Like if it sent it in an email or text, they couldn't click it or anything, they have to copy and paste it into certain apps that know how to read it. Man, RSS is really complicated, but I think adding these changes may actually simplify it.