With "impossible" you mean you can't use Tor Browser and fire up Robosats to buy Bitcoin via Revolut or Wise?
What if I need to buy something on Coinbase Commerce?
What has that todo with anyhting? For Nostr you need bitcoin (lightning) and there is plenty of ways to acquire/buy it anywhere in the world. No need to limit yourself to coinbase.
P.S: anon1395 is likely a new, mere troll account. Well played.
That's like saying "what if I punch myself in the face, why does my face hurt?" Try different ways. Don't buy on Coinbase Commerce.