If you seriously can't think of any way to "matter" that doesn't involve being cruel to others, that is a failure of society generally, but it's also specifically a failure of imagination on your part. You could try... not being a shitlord. See how that works out for you.
The amount of *energy* that people are willing to put into being awful to each other continues to surprise me. I mean, I can on some level get being resentful and nasty, but why not just kick back, put on some cartoons and call it a day?
I guess the lulz-high never really lasts, but instead of finding a different kind of satisfaction, they respond by upping their hostility.
This is an instance for people who find Nazis more offensive than nipples. Queer friendly, trans friendly, fine with tagged nudity, will block harassing instances without hesitation.