Snowflakes.
People that question the morality of a shitpost come in all shapes and sizes, like snowflakes, which is why we call them snowflakes -as snowflakes come in several shapes and sizes.
You might have seen suicide shitposts, met with "There are people here who've gone through terrible experiences blah blah... (no one cares)." This user is a snowflake. He might think he's standing up for something, but all he's really doing is making it more awkward for people to giggle and shit at the joke.
He might not be a screaming and crying soyjak, but he is a snowflake nonetheless. He is unable to feel good about himself, and he believes that no one should feel good about themselves as long as there is a speck of evil remaining in this world. He is guilty of being chronically online and useless, and he compensates for it by virtue signalling- that too, online.
When a snowflake sees a shitpost mentioning autism, he becomes the defender of autists. When he sees a shitpost mentioning black people, he becomes the defender from outer space.