Added a "How to vaporize a user" based on a issue that's ongoing.

Home.md

@@ -8,7 +8,18 @@ In future these should be wrapped up as a proper admin API (with a matching CLI
 
 Deleting users:
 ---
-...
+
+**Disclaimer: Not even verified yet**, [Reference ISSUE](https://github.com/matrix-org/synapse/issues/1707#issuecomment-285603721)
+
+```SQL
+DELETE FROM "users" WHERE name='@username:servername';
+DELETE FROM "access_tokens" WHERE user_id='@username:servername';
+DELETE FROM "user_ips" WHERE user_id='@username:servername';
+DELETE FROM "profiles" WHERE user_id='username';
+DELETE FROM "presence_stream" WHERE user_id='@username:servername';
+DELETE FROM "devices" WHERE user_id='@username:servername';
+DELETE FROM "device_lists_stream" WHERE user_id='@username:servername';
+```
 
 Deleting your copy of a room:
 ---