Talk:NBT-data/@comment-31418668-20170526015024/@comment-27219153-20170526025056

As the Mod progresses (or any coding project), you often find better ways to do something or you require more versatility for a specific function. Sometimes these things may render previous tags obsolete, thus they are renamed to ReplacedFlag_# and their functionality is removed. I'm sure that these tags could be removed completely from the game, however, this would likely require everyone to start a new world.