I think the key part is in there somewhere.

There is a caveat here I presume for all these posts. Few of you are writing about work related, industry news.

Not all news is relevant to me, as they do not impact my day-to-day life or I can do very little about it. These news are a rarely worth consuming.

As others have noted, relevance and impact.

Now, I have to go and formalize my mental model of news filtering...