Eric Kain, a gaming blogger at Forbes, wrote an article about an old never-released game getting made as a SNES cart for $60. In his discussion, he used the game's availability on emulators as evidence that the game was originally made many years ago. He incorrectly assumed that because the game was never released commercially, the ROMs available online weren't illegal and must have been released by the creators. Ben Kuchera, of the Penny Arcade Report, took this mistake as grounds to attack Kain's (and Forbe's) credibility and smear him as a piracy advocate.
Eric Kain has since edited the article and admitted to the mistaken assumption, citing his previous articles AGAINST piracy.
But this hasn't stopped Kuchera from attacking Kain.
The context of all this is that Kain has written a large number of articles calling out mainstream gaming journalism. He was one of few writers to approach the Mass Effect 3 ending controversy from the consumer's point of view and just recently he tried to understand the perspective of DmC critics instead of dismissing them.Kain is also an outspoken critic of the gaming review process.Somewhere along the line, Kain's reasonable journalistic perspective has outraged Kuchera enough to throw a fit on twitter. Maybe he doesn't like the image in the mirror when Kain criticizes his brand of journalism? It's highly entertaining to see Kain handle it with such professionalism.
*Edit: fixed wonky formatting