These are the exactly gems that I am constantly in search of, and thrilled every time I come across one.
This is going to turn out to be a rant, but sometimes it feels like there's a culture of solving problems by a philosophy of "let's throw more money at it, more technology at it, more people, more unnecessary abstraction layers, complexity and bloat - it's bound to be solved eventually". And with enough fire power, it usually is - but at what cost... I'm not sure what the source of the problem is though, and it's not only with code. Many times I struggle to understand certain concepts via professional literature, and when I finally understand them, I'm puzzled as to why they are taught in a way that if I didn't know better, I'd assume a deliberate attempt to confuse the reader instead of making the learning simple, intuitive and fun.
Exactly the same applies to code I've had to refactor and sometimes rewrite over the years. Obviously, some of it has to do with trying to get a product out in crazy schedules which requires making compromises, but I can tell the difference between compromise and "I don't really care" attitude, and I'm talking about the latter. It's a pity though - not only for the one that has to sort out and sometimes clean up the mess, but also for the one that creates it. Things are so much more fun where you care and are passionate about what you do, that I'm sorry for those who are missing out on it.
End of rant. Not sure it belongs here but had to get it out of my system :-)