Pol Pot pretended to be a communist, until it no longer suited him and he had them killed.
He was the leader of the Communist Party of Kampuchea from 1963-1981, at which point it was rebranded as the Party of Democratic Kampuchea, which he lead until 1985. Also that new party was communist. The Cambodian genocide was roughly 1975-1979.
Are you just defining people who are absolutely horrible not communists even though they call themselves communist, are allied with other governments who call themselves communist, and execute similar policies as them? I mean I get the impulse, I also get plenty of negative feelings when I think about pro-free market, pro-freedom politicians who commit atrocities or say stupid shit and would rather that those people don’t exist. Sadly, real world doesn’t always like us.