For the first few days of unfollowing everyone and putting them into my private lists, I'd wondered why the use of lists wasn't much more widespread.
After about a week, I realized something else: with lists only, Twitter is a lot less addictive. The contents are still interesting and useful, but the rage-building contents ("That's outrageous! I have to find out more!") that I'd get from the "normal" Twitter flow are gone.
I ended up checking Twitter multiple times a day to once every few days. I think I'm better off now, but I can't help but feel something is missing--and I do realize it's probably withdrawal symptoms.
I understand why lists aren't more widespread: it's way worse at feeding your outrage addiction.