AFAIK it's a pretty standard practice in UX and product design. A&F might have analysed hours of your finger gesture activity, but I doubt they're gonna know what brand of toilet paper you wiped with this morning.
This is a problem with the Silicon Valley bubble. Just because everyone else is in your shit pile doesn’t mean it doesn’t stink. You just can’t smell it.
All I hear is that every mobile/web app connected to the internet has significant privacy issues.
Where I point my mouse is my business dammit.
Nor of any alerts / notifications that are unrelated to the app itself.
So I'd say it can be quite a privacy issue.
Hmm.
Corporate cheerleading at its finest.
[Having hundreds of SV companies offer products that track user behaviour in iOS/Android/Web apps is of course a huge privacy concern, since that can very accurately profile you as a person.]