> Taking one example of an engineer who may have had a bad day [...] 

Well wait a second.

Look, if I get moody and pissed off and start cursing to myself at my desk, hey, just another Tuesday.

But if I then decide to terminate paid accounts and backups? Engage in a flamewar in a public forum with paying customers? Wow, that's beyond "may have had a bad day" and into "destroying shareholder value" and "employment terminated immediately."