Shiitchan concentrates on content rather than layout. HTML5 and Javashit are all about layout. Fuck content, as long as it looks pretty, who cares?
You don't see readers complaining about the lack of gradients and other visual gimmicks in books, do you? Well, the simpletons who do care about that stuff gravitate towards comics or magazines, not novels.
That being said, world4ch is a rather shitty BBS, but because of the posters, not the software.