Not the original commentor, but I guess what they were talking about was the low contrast of the description text of text posts on HN with the background.
@pblithier8, maybe this could be a feature for your much-loved Refined HN browser extension!
PS: Mihir is also our first engineering intern at Pabio! :D
Thanks Anand, I'll consider that! Meanwhile you can use the extension's "Custom CSS" field to take care of it :).