svoid dm_discord_copyLineToLongAppliedRuleList(long msgID) pcall {
  if (nempty(dm_gazelle_applicationsForMsgID(msgID))) ret;
  try {
    S mrStruct = gazelle_discord_matchedRuleStructForMsgID(msgID);
    if (mrStruct == null) ret; // with print("Not a Gazelle line or legacy");
    printIndent(shorten(mrStruct, 50));
    // TODO: emojis
    dm_gazelle_saveAppliedRuleToLongList(
      matchedRuleStruct := mrStruct,
      context := "discord msg " + msgID);
  } on fail {
    print("Msg ID: " + msgID);
  }
}

Began life as a copy of #1021726