I downvoted it because it was needless speculation by an anonymous account called "routergate" which was created 35 minutes ago for the purpose of stirring the pot.
I've never had any problem making critical comments about Heroku's load balancing design under my real name. I honestly don't know what you paranoid people are on about.
So you believe what you read? This post gives exactly zero insights about his leaving reasons. The stuff about the nice team is just normal happyspeak, he could be completely pissed off he would have written the same exact words.
calling someone a troll is basically bullying: it's using a label to shut someone up, implicitly identifying with the majority ("you're not one of us; you're not normal; hence you're wrong").
the way to deal with this kind of bullying is to call them out on it. show that what you are is normal. hence my post. because bullies aren't going to attack someone who has status and confidence, who shows that the behaviour they were criticising is reasonable.
sure, some trolls are simply wrong. but if they're wrong you can show that. there was nothing wrong here. just a bunch of cowards who saw a chance to bash someone else in the name of being offended (and i suspect, depressingly, with the hope that the person they were being offended for would recognise and reward them - because famous entrepreneur on hn. eugh).