Nostr has the potential to kill several social media platforms. In terms of users, that would be massive!

1. Facebook - 2.91 billion monthly active users

2. YouTube - 2.29 billion monthly active users

3. WhatsApp - 2 billion monthly active users

4. Instagram - 1.22 billion monthly active users

5. TikTok - 689 million monthly active users

6. WeChat - 1.25 billion monthly active users

7. Facebook Messenger - 1.3 billion monthly active users

8. Telegram - 500 million monthly active users.