I don't even know what finally pushed me over the edge, but I'm sick to death of "dark" being somehow synonymous with "quality," or at least a step in that direction.
I don't dislike dark stories--you don't get much darker than Lord of the Flies, and it's one of my all time favorites. But the tones of reverence that go along with, "Ooo, this going to be so dark......" or the tossed off, "She's not shying away, it's going to be DARK..." are just starting to drive me mad.
So, taking a hint from Tonks's book, "LUMOS."
Yes, it's true that some things go south in life. That doesn't make it "more truthful" when a fic goes dark, because let's face it, it's just as true that there are happy endings out there. (I'll grant that I haven't had one, but oh, well. I've seen them. Honest.) A fic that doesn't go dark is not inherently less truthful or of inherently higher quality.
There are heroes in the world.
There are good people in the world.
Fate can be kind.
I'm going to go chew on nails now.