Re: Normally I hate the lawsuit mentality
Your post shows some fundamental misunderstandings about how Ads platforms work.
Let me rephrase your last paragraph more accurately. No one actually reads their witterings but algorithms build up profiles, for example "female, 21 years old, mental health problems, lives in Cambridge, family in Oxford, slight lesbian leanings" and sites then sell this data to arbitrary third parties who are allowed to run whatever code they like in the subject's browser".
Doesn't sound as harmless put like that does it?