I don’t think that line is speaking for others. It is characterizing what others are actually saying.

Exactly. Everyone should decide for themselves how big of an issue it is for them and not one person who just shrugs it off. That person made their statement sound like a universal fact.

I think the most charitable (and probably the default) reading of that clause has an implied "I believe" prepended. It certainly does not have an implied "It is a universal fact that" prepended.

By way of analogy, when you earlier said "This is ludicrous. Can we switch to the metric system already?" no one thinks that you're speaking for everyone, but rather are advancing your own belief in the "This is ludicrous." sentence.

https://news.ycombinator.com/item?id=23660985