I'd argue that HN's professionalism is due to the fact that most of us use our real names (or at least make it easy for people to identify us) and most of the other commenters here are potential future colleagues.
I'm just as guilty as the next person of saying something rude on HN every now and then, but for the most part I and I suspect most others do our best to make substantive contributions to the discussions here.
I'm just as guilty as the next person of saying something rude on HN every now and then, but for the most part I and I suspect most others do our best to make substantive contributions to the discussions here.