missing the ability from nostr > SN
I honestly would not suggest that. SN it's nice because does not have all that noise. But it will be really cool to have a full working SN > nostr integration
I don't see why you need to run a nostr relay
Because you want still people to pay Xsats for posting and commenting, if SN own and manage a relay I think it would be possible. So keep what's generated inside Sn in the SN relay, but also enable to be broadcasted in the network.