Like WWW, RCA, GE.. (the latter two of the most recognizable and successful brands of all time). got it. (And no one cares what an acronym stands for anyway.. you don’t need to know this to make use of it, it has no bearing. RSS is pretty catchy as far as branding goes.)
The subscription process is simplicity itself and there are still some tremendously mainstream popular and well designed for a general audience readers like Feedly. I’ve almost never had to manually cut and paste a feed link (I think the cases were dealing with someone’s broken Linux desktop). Clicking on a link on an iPhone will open it in a reader or take you the App Store to install one.
RSS is simply missing the key feature of social networking “engagement” and these walled gardens are heavily promoted and in your face. It’s not a geekiness issue it’s an attention issue.