Therefore they are extremely reluctant to make changes in case they break it (e.g. old twitter), and because they don’t understand it, any large changes they do make are generally negative (new twitter, Reddit).
Plus, in my experience , users will bitterly resist any changes at all because the site doesn’t belong to management, it belongs to them. It’s their space. Changing anything is like someone’s snuck into their house at night and remodelled their lounge.
It’ll be interesting to see whether this is Reddit’s Digg moment or it’s more like the Facebook newsfeed where everyone kicked up a fuss for a bit and then carried on as before.