I’m a massive fan of David Simon, the guy behind “Treme,’’ “Show Me a Hero,’’ “Generation Kill,’’ “The Corner,’’ “The Deuce,’’ and, oh yeah, “The Wire.’’

And on Twitter, Simon does not disappoint. He is super engaged with the issues currently dragging the entire country, like many other strong Twitter voices, but then he uses language that is simultaneously direct, brilliant, obscene, angry, and funny in equal measures. His expletive phraseology is particularly entertaining — original and hysterical. But one tweet, which said that a supporter of Trump’s family-separation policy “should die of a slow moving venereal rash that settles in your lying throat,’’ and another telling a troll to “die of boils,’’ managed to offend the Twitter powers that be; a few weeks ago, he was locked out of the platform.

Simon was ultimately allowed back in, but don’t think he returned as a reformed tweeter who has learned to lower his voice and temper his opinions. He remains the ferocious, righteous, compassionate voice that has brought us such powerful television, and his return on Friday night was undaunted. “The fact is, your algorithms and your ethos here is just fecal,’’ he wrote to Twitter CEO Jack Dorsey in a thread. “And when the history of this awful American epoch is written, the tone-deaf abdication of fundamental ethics by social media platforms will be an overlay to the disaster. You are failing us all miserably.’’

I can’t repeat a lot of what he has written to Twitter, this being a family news outlet. Basically, he challenges the platform to inform him why he was banned when trolls who “slander women who have had children kidnapped’’ and “slander 14-year-old Holocaust survivors’’ are not. He also wonders why Twitter blocked him but allowed conspiracy theorist Alex Jones to make the “unevidenced assertion that [Anthony] Bourdain’s murder’’ was caused “by Deep-State liberals.’’

Simon wrote to Twitter on his website, as well, saying, “As far as I’m concerned, your standards in this instance are exactly indicative of why social media — and Twitter specifically — is complicit in transforming our national agora into a haven for lies, disinformation and the politics of totalitarian extremity. The real profanity and disease on the internet is untouched, while you police decorum.’’

Waiting for Simon to hear back from Twitter? Don’t hold your breath.

Matthew Gilbert can be reached at matthew.gilbert@globe.com.