Zaps are optional, if you don’t care for them you don’t need to attach a lightning address to your profile. Some clients don’t display it at all.

Nostr has nothing to do with bitcoin or lightning, some clients choose to integrate with it because it aligns with the philosophy of an uncensorable, decentralized speech protocol.

Sorry I wanted to make the joke "what this is a cryptoscam? I though this is a socialmediasite" but something went wrong while typing a really funny human mistake I am totally not an ai trust me hahaha