In fairness I don’t use social media (well, other than posting here from time to time), so it’s difficult for me to identify with folks who spend a considerable (IMHO) amount of time recording their activities and thoughts on third party systems which have dubious, at best, privacy policies. My naive understanding of these platforms is for you to make yourself discoverable.

Can someone help me understand why after spending time over years recording yourself it is now a surprise companies are using that data?