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Turrets don't need a buff, players just need to learn when it's not safe to tower hug. You can't expect to be able to stay near a tower all game and be safe.
Also that fiddles example makes sense -- fiddles can solo dragon at level 6 for crying out loud. If the enemy team was smart enough to do some kind of hard CC wihle fiddles was tanking the tower with drain, I think the situation would have been completely reversed.