RE: Developers should always be open to learning

It is all good when you learn how to better address problems you actually have. Unfortunately many times people start to look for / create problems just to use newly acquired knowledge :o)

Also when your new knowledge is too shallow you might use it incorrectly. "I don't know what these keys are for, but it has metal case and it has its weight, let's use it as a hammer". Such attitude leads to bloated and slow apps, simple tasks use heavy frameworks and thing that should be able to run on a potato suddenly requires tons of RAM and top CPU. And when you point that out, and even make a prototype that runs 100 times faster, you hear "meh, you have not used that wonderful bleeding edge library - you want us to code like cavemen?".