exactly my thoughts: being Bitcoin only is not the same as wanting to be Nostr only. Bitcoin is the best money, so you are currently winning with Bitcoin only. Nostr is not money and certainly not THE one best solution for all sorts of things. If you don't keep an open mind and can merge things fluently, you will quickly stumble again and again. I'm just thinking of that: Domain owners of Nostr relays in prison. 

 Yes, relays are web servers, so all the risks of running a web server apply to running a relay.  Unfortunately, that does include the risk of jail.  Decentralizing that risk, should be something that everyone welcomes.