<oembed><type>rich</type><version>1.0</version><title>livid wrote</title><author_name>livid (npub1jh…kp745)</author_name><author_url>https://yabu.me/npub1jhvk57c748n0xf58m4htrcl4365twqd36umuu23qkla3c90q8tksekp745</author_url><provider_name>njump</provider_name><provider_url>https://yabu.me</provider_url><html>nostr 的 relays 需要维护一个基于关键词（域名，特殊 URL）的 spam 过滤机制</html></oembed>