I was referring more to the people around me who are outside tech. Based on interactions with friends and family, I'd guess that a little over 50% know what a bookmark is, around 25% actually use bookmarks, fewer than 5% know what RSS is in very general terms and I know only one other person who actually has any RSS subscriptions.
I know people who work in IT who have never heard of RSS!
Just thinking about how far we have to go and how badly trained people are sometimes makes me want to cry. And I'm just a hobbyist; what must I be missing out on?
My biggest beef with CSS is that it's on the wrong end of the wire. What ever happened to the idea that the client is in charge of rendering?
Or maybe it's that the clients have abdicated their responsibility: the browser included with OS/2 Warp had a settings page that let me set the display characteristics of every tag in the spec. Thus, every site looked approximately the same: my font, my sizes, my indents, my spacing, whether images displayed (or even downloaded, I think) and whether text split at an image or wrapped around it. And it's not like I had to customize everything for each site: if you used a tag my browser recognized, my browser took over.