Why is smurfing for fun seen as dishonorable??

I am a Diamond 3 - 2 player on average. I play on my Silver alternate account and rotate between playing as I would in my elo and then intentionally sabotaging my own games with subtlety to remain in low Silver than dodge (which would inevitably make my MMR kick me upstairs from Silver). I get hate pretty much every game, but I don't get why lol.
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