Twisted Treeline XP farming Bots

Me and my friend are both Plat and randomly played a twisted treeline, all the players besides us played as if they were bots. Wouldn't go into jg, randomly got confused if we went into brush, built very strange, didn't talk in all chat, no capturing of alters, and ran ghost heal in every game including match history games. Does anyone have an idea of what is going on ? We believe that it is XP farming to farm gems as you get them for level 150 and every 50 levels beyond that. Try it out just a discussion I would love to learn more
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