[Furudanuki]

Originally Posted by Ithekro

So why is there such a strong Anti-Key thing going on?

The anti-Key sentiment on parts of 2ch predates Kyoto Animation's involvement by quite a bit. This quote from Wiki seems to mesh pretty well with the info I've picked up during the last 3 SaiMoe.

A bulletin board system (BBS) based on the interface of the large Japanese Internet forum 2channel (2ch) was formed on January 26, 2000 named "Leaf, Key BBS" (leaf,key掲示板, leaf,key Keijiban?), otherwise nicknamed as "Leaf-Key Board" (葉鍵板, Ha-Kagi Ita?). The board originated from 2ch's video game discussion board due to a dispute involving the game Kizuato in December 1999; Kizuato was an early game of another visual novel producing company named Leaf. Ultimately, fans of the game moved to 2ch's adult game board, but there was not much resolution, and at the time Key fans on the board were being shunned for discussions on Kanon and, at the time, Key's upcoming game Air. This resulted finally with the Leaf and Key fans moving away from 2ch and forming again on the PINKchannel Internet forum.