I wonder how much engagement Google/Facebook/et. al. lose from people who are about to make a comment/post a status/etc., and then thing 'Hm, no - this is private now, but what about in a year when they automatically change my privacy settings without asking me?'
Put another way, imagine I am a teenager or college student who uses Facebook.
1. Start to upload a photo from my phone of me and my friends doing shots
2. Try to figure out how (on my phone!) to set privacy settings so that my younger brother (who is my Facebook friend) and my parents (who aren't, but use the Internet and sometimes Google my name) can't see it.
3. Remember that Facebook has a history of "expanding" privacy settings retroactively
4. Think "Ah, fuck it", and send a Snapchat to my friends instead.
In reality it's probably not that common right now, but hopefully that may increase in the future. You can only pull the rug out from under your users so many times before learn to walk along another path.
Put another way, imagine I am a teenager or college student who uses Facebook.
1. Start to upload a photo from my phone of me and my friends doing shots
2. Try to figure out how (on my phone!) to set privacy settings so that my younger brother (who is my Facebook friend) and my parents (who aren't, but use the Internet and sometimes Google my name) can't see it.
3. Remember that Facebook has a history of "expanding" privacy settings retroactively
4. Think "Ah, fuck it", and send a Snapchat to my friends instead.
In reality it's probably not that common right now, but hopefully that may increase in the future. You can only pull the rug out from under your users so many times before learn to walk along another path.