Yup that's one way for sure. Build the personal relay right into the client. Then disseminate the content out to aggregators on the network. 100%.
On monetization.
On social networks, people want REACH. That's all an ad is.
It's a payment for REACH. To boost your content out into other people's feeds. That could be an advertiser. Could be a regular creator. Could even be a new user trying to turbocharge their initial growth.
But these are the people who fund a network. We just need to structure a economic model where the other 3 (or even 4) stakeholders get a piece of this pie so they can survive and profit.
No relay, client, or creator is surviving off monthly or voluntary direct payments. That's my only point.