One thing I love about programmers is that they rarely use complex symbols. They are the complete opposite to mathematicians in this regard. Basically all programming languages consist just of ASCII keywords. So when in doubt about some keyword, you can just use Google and type it in. Together with the name of the language.

I guess symbols look fancier and are more concise.

Also, mathematicians do love their PDFs. No doubt because it supports their beloved symbols so well. Of course PDFs are terrible for the Web and screens in general, but only a programmer would care about that.