I'm one of the new guys ruining the site with lousy content. New enough that I didn't even know there was a redesign before I read this thread. But that is a fast rule of every web forum ever, that no matter when you join the guys who were around a couple of years before you were better, and your generation sucks.
But with Safari on OSX the site is fairly clunky and lags a bit, compared with the other forums I use. With Safari on an iPhone it is unusable. Especially PMs, partly because the script running the popup window continually positions it, which prevents pinch-zooming to see enough detail to type. It can be middled through if you have lots of patience and flip java script on and off as necessary.
The trend is to go whizzy. Craigslist, an almost perfect content focused design, is laughed at and overlapping mouseover popups and three level nested fade in menu bars are somehow 'smart'.