If your only comment is "thanks for pressing a button", yes it's better to just shut up. I'm not the only one who thinks so -- your comment was downvoted and flagged pretty quickly.
>speaks volume about what you consider a contribution in FOSS,
How does my suggestion to not leave negative one-liner comments speak volumes? What was your contribution here again? Trying to make someone feel shitty? Awesome contribution.
>frankly I hope it's not a reflection on how you approach the real world, because you're in for a rude awakening.
Suggesting that someone not be negative to someone else purely for the sake of it? Yeah, rude awakening coming my way for sure.