[unimpressive]

Maybe, maybe not. I think that in any case the 'stuff' (Algorithms, Databases, Operating System Internals, etc) they teach in college is intrinsically interesting. (Or perhaps not.) In any case it is also extraordinarily useful when you're doing something new and can't rely on the work of other people who already knew it. The thing is, the more time you spend learning 'junk food' topics like frameworks and API's the faster you're going to have to walk the treadmill to stay relevant. The more theory you know the slower you go out of date.

Read more textbooks and fewer blog posts.