I would take impoliteness over toxic ideology backed by fake news any time. Listen to George Carlin much?
This whole line of thinking exemplifies why tech bros at places like Facebook and Twitter are so tone deaf to this whole problem.
You draw the line at "LMAO" but allow pro eugenics posts through?
Here's one in 2018:
Eugenics has a bad name, but it is scientifically valid. We now know that genetics play a huge role in life outcomes (e.g. adult IQ appears to be 70-80% heritable) and, for better or for worse, the eugenicists were right, even if their methods were morally wrong. We don't focus enough on positive eugenics: getting smart, non-violent and conscientious people to have large families. Right now we do the opposite: smart folks feel all sorts of pressures to have a small or no family due to careers, the expense of elite schooling, the environment, etc. The opening scene of Idiocracy nailed it.
https://news.ycombinator.com/item?id=17237184
That post is one big fucking lie. Was it flagged? Nope.
I am beginning to really loathe the hypocrisy of techies of your ilk.