The sender decides what is important and you trust the sender to be mindful of these important notes by following them. It doesn't have to be anything important, it's just that it's content expected to be come at more reasonable schedules than microblogging, like when you subscribe to an email newsletter.

I don't know if we need relays, but as long as decentralization isn't compromised I'm all for delegating more tasks to relays.

What do you think?