[neilk]

I am a fairly savvy computer user, and I use Facebook lists. I always have trouble figuring out who is in what list and which list I'm talking to, and how to add and remove people from that list.

Facebook has proved over and over that their priorities are about public sharing, and even to make more things public that previously were private. In part this might be Zuckerberg's vision that sharing almost everything is the future. But as a business they are also incentivized to make sharing effortless, to encourage people to put data on Facebook without thought.

Any thought to privacy is always a little bit of friction. So it's always de-emphasized, if not actually buried.