A crucial part of humor is understanding your audience. You're not going to walk into a Catholic church and start making pedophile priest jokes so loud that everyone can hear you. People need to learn to treat social media as if they're out in public. If you have thousands, or millions, of followers maybe its not the best place to engage in graphically dark humor. It doesn't help that the Twitter format makes it hard to add context or tone to posts, so it leaves much up to the reader. Mind you, the royally fucked political bullshit these days does make everything worse and has completely ruined social media.