My feed is now composed of synthesizer groups, funny dogs and funny birds. I get a lot of positive things from my feed, and a lot of relevant advertising for things I'm interested in.
It doesn't matter if it's your sister, your best friend, or your mum, just unfollow. They don't know about it (unless they ask if you 'saw their post'), and you can improve your experience.
Because you are proudly explaining you’ve made one.
It's a bubble, but it's harmless. Synths and cats. Facebook isn't doing anything to me (besides having my data) except showing me that new cool product X is out and I can buy it if I want.
In a similar vein, you know that media has bias, but you still consume it, and you do so thoughtfully, it's no different. You don't just 'stop reading the newspapers'.
This, of course, does not invalidate the main thrust of the article's argument, as the way to increase advertising efficiency is to accumulate and exploit ever more data about its users. Recent events suggest that this is not in users best interest, as FB has proven an untrustworthy custodian of user data.