I think posts like what you are describing are just indicative of the still lingering influence of 4chan and normie websites. People are not sure how to go about internet posting without bringing up these topics, because they've been drilled into their heads for years at this point. A culture doesn't change overnight.

For example, the early Christians still had many Hebrew and Roman influences before their own culture developed and spread. Early Christian art is just late Roman art applied to Christian themes.

The same is true here. I think if we just focus on making Heyuri the best site it can be; by rewarding stuff we like and ignoring stuff we don't, the unpleasant aspects will fade away in their own time.