note that user_ignores target is channel or user id

nomen/db.py

@@ -42,7 +42,7 @@ WITHOUT ROWID;
 CREATE TABLE user_ignores (
     user_id INTEGER NOT NULL REFERENCES users ON DELETE CASCADE,
     guild_id INTEGER NOT NULL,
-    target INTEGER NOT NULL,
+    target INTEGER NOT NULL, -- channel or user id
     PRIMARY KEY (user_id, guild_id, target)
 );