From cda324664dec5de57862d59a2231738b3e152c90 Mon Sep 17 00:00:00 2001
From: Enrico Fasoli <fazius2009@gmail.com>
Date: Thu, 19 Nov 2015 17:38:18 +0100
Subject: [PATCH] added note about 'op' field in posts

---
 PROTOCOL.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/PROTOCOL.md b/PROTOCOL.md
index ba71121..b6d3137 100644
--- a/PROTOCOL.md
+++ b/PROTOCOL.md
@@ -90,6 +90,9 @@ __TODO__ implement the ability to manually hide content and to name moderators t
       "text": "Content of the post"
     }
 
+__Note:__ `op` should only be used for crossposting. When possible, the client
+should figure out on his own where the post came from
+
 Optionally a post could have a `text-url` field so that crossposting is
 possible for lange texts without duplicating data.