Earlier quoted context omitted.
I think the point they're making is that Meta is in a special place, where by using their unusually vast amounts of personal data and photos, they are somehow (?) going to dox anonymous users by publishing their real names, based on matching their profiles in some way. At least that is the implication based on the quoted tweet right at the top of the post (which is lacking any real detail how exactly Meta got this pe…
> they are somehow (?) going to dox anonymous users by publishing their real names, based on matching their profiles in some way. Aren't there laws against that? are there even allow to build internal links between FB/IG accounts without user consent?
Law is a weak form of mitigation for risk of harm. If it can be done and there is motive to do it, expect that it will be done.