Also devs want to eat sometimes and for services there are few possibilities to create incommings, turning it in a paid service, put ads or using afiliate links which ay an revenue if the user use these. A no go are selling private user data which are the methodes of big corporations, this is the real problem. But it isn't avoidable, when you block these that also those which use ethical methodes are affected. The solution is only a clear legislation making it illegal to sell private user data to third parties, out of control how these use or protect these. There isn't any other. Privacy is a basic right, period. Traffiking with user and metadata is a crime.