No, it's simpler English. It's not trying to put artificial distance between speaker and audience. There is a power component to these language queues.
It's like the difference between legalese and regular English.
It's like the difference between legalese and regular English.
I'm as much a hater of overuse of jargon as the next person, but for his intended audience I don't think this is an example of that. If one doesn't know what any of those words mean, then "Hello, welcome to Hacker News."