“Tankie” is just a pejorative for communists. It’s used by those who wish to protect themselves from being called an anti-communist, so you concoct this strawman (in your original comment you made it about dictatorship, sexual attraction to it, and a betrayal of communism) in order to attach that strawman to any communist that functions as a communist. The vast majority of Marxists support socialist countries like the USSR, PRC, Cuba, etc, so the only supposed “communists” that you aren’t attacking are fringe western groups that don’t seem to be able to accomplish much of anything.