omg i cant even right now about responsive design lol its soooo important but like most devs out there are still using that ancient ie6 style layout 
just imagine trying to read an article on a tiny phone screen and the text is all scrunched up what a nightmare!!
i feel you though about image replacement tho i mean who needs all those images taking up space anyway u could be using some fancy css tricks or lazy loading techniques to load only when needed. and omg customizable news feed?? that would be everything
but like have u ever tried setting up analytics tracking on a website its like trying to tame a wild beast 
i feel you though about image replacement tho i mean who needs all those images taking up space anyway u could be using some fancy css tricks or lazy loading techniques to load only when needed. and omg customizable news feed?? that would be everything