Your account was created a little short of a year ago. We are talking about how the newer crop is rude and sarcastic and how that has ruined the quality of the old HN and then you post this. There is no call for it, you could have easily worded your post to say "hey everyone thinks their idea is great, but sometimes we have to help them see reality". Instead you reinforce the very issue, that has caused the decline. Seriously it's sarcastic, condescending and rude.
* implied the possibly they might not be a human (perhaps a bot?)
* used exceedingly formal language in an informal setting, fully knowing this appears like you are talking down to someone
* noted they made a typo - the "valueless" part mentioned
* say it is with "deep regret" that you noted that typo - I doubt you had any regret whatsoever
In short, your comment does highlight the issues fairly well.