Lina on Nostr: Why is this necessary?

{ "id": "94ec8e7802db500fea5aa0cc5d6dd4811dcfc208b4e528d257c00e89a1fe09e1", "pubkey": "0317d7bada368c71d10f7959e47e83e10762e4e8bb02d4c33600b9854d7f0719", "created_at": 1687129288, "kind": 1, "tags": [ [ "e", "72dc11415dda1ca271fbba0fc912047aa890d08bd329ddb84920df0900cd4d9d", "wss://relay.nostr.band", "root" ], [ "p", "eaf1a13a032ce649bc60f290a000531c4d525f6a7a28f74326972c4438682f56" ] ], "content": "Why is this necessary?", "sig": "85b992bf6cb1eebf9546f0c6a48fecc93e9bacf90b8668e612b0471cd9e6dbe2c0be9d4ceb450152889fe2b221771b6d16c0578ff2b85b22dd41bf70d9e8492c" }