Nowhere in the article does he mention who his former employer is. He vaguely implies that it's a hedge fund, but there's more than one of those. This isn't an article lambasting a particular company; it's about counter-offers in general.
According to that CV, the employer was Bigger Hedge Fund.
Kinda a funny coincidence that there's another person with the same name on LinkedIn who also recently quit a programming job at an investment management firm and lives in the NYC area. Anyways, the fact that he links directly to his CV makes it even less anonymous who he's talking about.
To me, this is like me saying "I've met some pretty awful people..." and you saying "How dare you talk about my sister like that!"
Publicly (or to their face) calling a former employer "sleazy" is very, very unprofessional. It demonstrates poor taste and lack of restraint. And ultimately, self-importance.
"How dare they not recognize that their pathetic company is NOT my dream job? How dare they offer me money to continue to support their petty operation?"
Are you people even serious in defending this?