The Mad Queen
Memento Mori. Unus Anus
Also The Mad Queen wow, that sounds like the kind of game that would never have gotten past the first session if the guy was really going that hard on railroading. This does, however, raise an important question: If you had such a bad experience with railroading, why is it that you, in turn, are railroading your own players? With an experience as bad as that, you should know that removing player agency from the equation is always a terrible idea and communicating with them is a much better idea than using the force-edit function since there is literally no way to use it without looking like a gigantic tool.
Now hold the phone just a second. Railroading or not, that guy was the worst GM/DM I've ever come across and to this day I've never heard stories of anything worse. He wasn't just a bad DM/GM, he was a bully with narcissistic tendencies among other things.
I wish it had just been railroading he did. I'd recommend going back and reading the full post on that campaign again but keep in mind it's skimming the surface. I wanted to include as much detail as I could but I was just recapping a bad campaign so I missed out a few things either as they were unrelated to the campaign (but still tied to his bad behaviour) or I missed out intentionally (such as the personal info he blackmailed me with, that's a no-no).
My worst sins? Jumping the gun on the edit function due to misreading a post (which could have been solved with actual communication instead of being a tool) and trying to block (and silence) a player who I thought could be harmful to the RP (when it wasn't the case). Shitty, but extremely minor in comparison to that guy. I don't think I'm capable of being as bad as him, even if I wanted to be.
Blackmail, threats of violence, outright bullying of myself and another player, encouraging violence against myself (his friend did end up hitting me and that's when I called it quits with that group altogether)...Total wankstain, not just as a DM/GM but as a human being who used his position to exercise some kind of vendetta that came from nowhere.