re: did google know?
Well Duh! Google knows more about us and especially our children than we do. They never forget (unlike us mere mortals).
Google (and the rest of the scumbags) simply don't care. Everything we do on the internet is $$$$ to them and music to their ears.
I'm just sad that this is only £2.5B. Why not £100B? the former is loose change to Alphabet. Someone somewhere is going to win big... no make that really big in a lawsuit against the data bloodsuckers. That will cause shockwaves through the (anti)Social Media world. Only then will we even start to see a change in behaviour.
Just say no to all this data slurping.