If I'm not mistaken the third connects directly to Core but from what I remember it had some IP revealing vulnerabilities. But, I am not certain. That's a question for sparrow or maybe nostr:nprofile1qqs9df4h2deu3aae83fmet5xmrlm4w5l9gdnsy3q2n7dklem7ezmwfcpz3mhxue69uhhyetvv9ujuerpd46hxtnfduq5xamn8ghj7dnvv45xs7tywde8g6rpvakkjuekw46nvar4vdhxgan6wumkxatzwpckk6rk0puhjdm2da5k7ce5x4kkkumjx3jkzepwdahxjmmwqyt8wumn8ghj7un9d3shjtnwdaehgu3wd9hxvmckqw0xz