You should overlay a banner on your blog when they send you an HTTP Referer explaining their nonsense. Maybe then they'll get the message.
Then again, maybe they like the ability to critique your posts without you being able to rebut their opinions. It's an effective tactic in online echo chambers.
Or redirect to a picture of a testicle in an eggcup.
From their about page: "If you wrote a link that was posted, please reach out in chat, we'd love to have you join the community."