Two more thoughts: - This is a bit like eBay or Amazon, arguably; except that the user profile and context is optional for the user to provide - Addictive pro

Two more thoughts: - This is a bit like eBay or Amazon, arguably; except that the user profile and context is optional for the user to provide - Addictive products could still be a loophole that bad advertisers could exploit to monetize users without providing them overall benefit; fortunately local regulations tend to cover that