1. It's a pain in the ass to set up complicated relays.

2. Can't attract Twitter pornography creators or pornographic photo creators.

3. Wallet is not built-in, you have to download and set up wallet, especially for those who don't like cryptocurrency, they will find it troublesome.

4. Bitcoin only accepted, no other cryptocurrencies?

5. Can you find my account on Google, Yahoo, Bring...? Can I find my posts on Nostr on Google, Yahoo, Bring...?

(For example, after a few hours of posting on Twitter, my posts can be found on various search sites using specific keywords.)