I'm cutting down on my interaction via my personal profile on Facebook. Earlier today I unsubscribed from all the groups, blanked my profile except for contact information and stopped Twitterfeed from posting there. I'll continue to read status updates of my friends via Threadsy. Correction: have to be logged into Facebook for that. And I don't want to be logged in, since this allows Facebook to track every move we make via the 50,000+ websites that have installed its social plugins. So I can use Gwibber - Linux's desktop aggregator.
I didn't yet find a good alternative to Facebook, but that isn't sufficient reason to go on using a service that is growing steadily nastier.