The posts I see most often on LinkedIn are ones that try to capture a trope of "flipping expectations" that people associate with great business people. Silly, inane conclusions are made about everyday events so that people who are startlingly mediocre can cling to them as a differentiating factor.

Basic politeness is sold as the secret hack to become the next Steve Jobs. Boasts of frugality are made and used to explain why the poster will inevitably become ultra-rich (no avocado toast, no lattes!). HR people explaining the mostly arbitrary reasons they passed over anonymous candidates, seeking to be seen as oracles of career success. Tech people saying "Ten things that separate junior developers from seniors" and then citing meaningless things like the modulo and ternary operators, or the poster's personal favorite whitespace style.

Realistic advice is hard to find, probably because it's so general in its best form that material would run out quickly. I think of Rob Dahm's old video where he suggested, Lamborghini in the background, to "Find something that you're so good at it feels like you're cheating." Or a quote from Kurt Vonnegut's player piano, "Nobody's so damn well educated that you can't learn ninety per cent of what he knows in six weeks. The other ten per cent is decoration... Almost nobody's competent, Paul. It's enough to make you cry to see how bad most people are at their jobs. If you can do a half-assed job of anything, you're a one-eyed man in a kingdom of the blind."