good lord, in those phrases he was quoting the wording in the comment he was replying to.
I don't know if you are young or old, but I'd like to teach you about threading (and we won't stop till you get it or your eyebrows are gone)
The person kvetching at you about not understanding threading is making a joke because there's also a process called "eyebrow threading."
HN is supposed to be high quality discourse and you have to be on your toes if you want to participate!
Missing context, and missing references, and doubling down when you're called out is NOT the optimal strategy.
I am so sorry not to be at the correct level and, as a non English speaker, not to know all the references.
I feel so ashamed, fortunately you enlightened me about the high quality discourse I was missing.
Thank you very much for your kindness.
I would say that they are pretty average.
First I am not sure what you mean by "know-it-all", specifically if this is a positive trait or not. Let's say that it is positive.
In that case age does not matter much because you can have extremely good practices that are simply outdated. Yes they work. Yes, they are stable. But they may not be adapted to the current needs.
So age is not a good differentiator for me.
Now, if you drop "older" I agree with you (with the assumption of a positive meaning for know-it-all)