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.

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.