rich1.042N3 (npub1es…5cqvg)https://yabu.me/npub1eseajvcuqgk6dy98zndje76hcd485zwmhjx4ztgnw4yruq68lhxq45cqvgnjumphttps://yabu.meIt is. At the moment many Nostr clients generate a link preview when they encounter a link in a note. If this would be many it would effectively ddos the linked resource.