" moralist "

 [ "moralistic" ]

1: Someone who is overly concerned with conventional morals and will often kick up a fuss over nothing. Typically, the word is used to describe someone with a petty, mechanical and shallow sense of morality; characterized by dogma and conventionality rather than reason, with no regard for context or nuance.

  * e.g.,  ... Person A: Swearing is bad in any context and should be criminalized! Think of the children! 

 [ "moralistic" ]

1: Pompous and judgmental upbraiding of someone according to a rule-book which you probably don't share

  * e.g.,  ... Moralistic Labor multiculturalism spokeswoman Michelle Rowland called on the PM to act (on Eric Abetz' use of the term 'Negro'). "It's 2015", she said, "just about every right-minded human recognises that it's a deeply offensive term" 

 [ "Up Yours, Woke Moralists!" ]

1: A term popularised by Dr Jordan Peterson when displaying contempt for Radical Leftists. Often quoted by Villains in memes just to show how batshit insane you sound when you say it.

  * e.g.,  ... Senator Armstrong: "Up Yours, Woke Moralists! we'll see who cancels who!" 

 [ "Up yours, Woke Moralists!" ]

1: A term popularised by Dr Jordan Peterson when displaying contempt for Radical leftism. Often used by villains in memes to show how utterly batshit insane you sound when you say it out loud.

  * e.g.,  ... Senator Armstrong: "Up yours, Woke Moralists! We'll see who cancels who!" 

 [ "YoYo Moralist" ]

1: A person who does some shitty things til it weakens him too long, and bounces back a while doing the right or no-wrong until they feel up to doing shitty things again.

  * e.g.,  ... The YoYo Moralist hedged his bets with a weak of clean living. 

 [ "YoYo Moralist" ]

2: Moral bet hedging.