I went cold turkey and closed my fb account. Feeling a little bit of abstinence, but I think I'm replacing it with more activity here and instead of opening fb on my phone, I open an ebook reader, so it's good so far.
In a perfect world, I'd have only the functionality that those two provide, perhaps with some sort of static profile.
I care about the amount of time I spend on those platforms and the amount of garbage I consume on them. Whatsapp is just a messaging platform, not one that provides an information feed to consume. I kept twitter because it's short and limits the text I could post to someone about something, which also limits the desire to do so because a tweet is ironic, informative or sarcastic, but cannot ensue a good and lenghty discussion (though some people try that, I cannot bear to imagine doing so)