Wow....hadn't heard the term "struggle porn" before, but I think it hits the nail on the head.

Probably because writing a blog post about how everything was really easy and straightforward and now you're earning millions with no meaningful competition would make people hate you and then try to copy your business model. Writing that everything was really hard discourages competitors.

It is. To each their own, but it sounds like when a bunch of Wall St interns brag to each other about how they worked until 3am, went home and showered, then were back at work by 8am the next day. It gives some people a sense of validation/importance that they are way more hardcore than the average person because they work so much more. It actually favors inefficiency in the sense that working smarter isn't as valuable as who could withstand grinding or "hustling" the longest.