I really loved Mark Otto's sentiment here — design and development aren't separate jobs like, say, deep-sea oil drilling and copyright lawyering are. We're all working on the same spectrum with an increasing amount of overlap. http://markdotto.com/2013/04/22/designer-developer-spectrum/
There's definitely room for specialisation but our work is so much richer when we learn about the full stack. If you want to know more about design — just ask a designer :). We don't bite, we've just been a bit lazy with learning resources recently. HackDesign is a great start but the design community are well aware that learning to design at the moment is a mix of formal education, figuring shit out over years of making mistakes and a sprinkling of black magic. There's no Railscast to grok typography, and that sucks. We're working on it though :)
There's definitely room for specialisation but our work is so much richer when we learn about the full stack. If you want to know more about design — just ask a designer :). We don't bite, we've just been a bit lazy with learning resources recently. HackDesign is a great start but the design community are well aware that learning to design at the moment is a mix of formal education, figuring shit out over years of making mistakes and a sprinkling of black magic. There's no Railscast to grok typography, and that sucks. We're working on it though :)