I gave you no reason since I didn't tell you which technologies I work with when I'm programming. What's wrong with being uninterested in improving things that don't affect the way I program?
There are many things in web-dev related programming I want to learn, and many things I want to avoid, most programmers are the same, they are interested towards a specific area and that doesn't makes them "MeDiOcRe PrOgRaMmErS" like you said.
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