I think about 20 relays is a pretty decent number for a client. After a certain amount more relays is going to slow you down. We should have lots of topics specific relays in the future. As well as large paid relays to meet people.
Discussion
> We should have lots of topics specific relays in the future.
Sounds like Mastodon.
> As well as large paid relays to meet people.
I'm still not sure about this. People like Twitter exactly because they don't have to think about which Twitter server they are on.