Some possibilities:
1. Disgruntled employees who got pulled back to save the failing clouds blowing steam off on Reddit
2. Just had dinner with his/her least favorite relative and had a fight over why blue cheese is edible.
Hope that makes you feel better lol.
But if you still feel sad, take a look at : https://news.ycombinator.com/item?id=16508921
The top Rants by Linus on the Linux Kernel Mailing List