so replying to someones post from mastodon.social from nostr is fine, others can see it but everyone on mastodon.social cant unless they follow you right nostr:npub1vaz36aqfwh7uar7wwqc8eg8f86kgsh8r78gle7ehsdnwl9c98qwqr07xck ? (he doesnt follow me so cant see this lol)