Please don't cross into personal attack, even if another comment was bad for HN.

https://news.ycombinator.com/newsguidelines.html

The first part and general tone of the comment might be weirdly negative but their main point is valid

Quoting something as questionable as "For instance, cancer progresses much faster in summer than in winter" as a fact, without even a citation while signaling expertise is not exactly great.

I certainly wouldn't call GP's comment friendly, but I found it informative. Especially when you're trying to discuss things scientifically, I care much more about truth than kindness (not that you shouldn't try to be nice). I think replies criticizing flaws in comments are some of the most underappreciated tidbits of HN, because they are drilling into the details which are what really matters.

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