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Tech bros holding flashlights under their chins: Guys, what if le Skynet, what if le Gray Goo??!!
(hexbear.net)
WHAT IF OUR AUTO-COMPLETE CHATBOTS DECIDE TO KILL OFF HUMANITY BEFORE WE EVER BECOME A TYPE 1 CIVILISATION 
Climate change: 
EDIT: Oh, I see, you mean we are dorks but look at these fucking dorks, dorks that are Main Character Syndrome enjoyers who watched the first two Harry Potter movies and came up with edgy contrarian fanfiction about "what if bad guy good actually" and added a bunch of I Fucking Love Science plot beats and, of course, (CW: slavery, sexual violence, pedophilic context from author)
spoiler
Hermione conveniently dies in a way where she becomes a sex zombie for the Main Character's continued pleasure!What
For a bad time, look up "Harry Potter and the Methods of Rationality." It's basically their Bible.
It's as bad as it sounds, and then somewhat worse. The Wizard of Whoa on spacebattles did a good/agonising read through of it, and I think the only way to stay sane through it is with that kind of insulating layer.
I've seen excuses made for it even on Hexbear before, usually something like "but Rationalist Harry made the Sorceror's Stone available as a new kind of free healthcare system!" which so blatantly and glibly ignores the horrid atrocities and outright slavery enjoying and other weird creepy shit in the rest of the fanfic that it may as well have been "but the nazis lifted spirits that were demoralized after the Treaty of Versailles and ended hyperinflation" by comparison.