The TLDR seems to boil down to that the EFF will not be able to tell you what information or interests your FLoC provides, but large advertisers and ad companies will be able to - because they run the same code and can read FLoC identifiers off a ton of people.
To EFF your floc code is just noise.
To large ad networks, they see that people with floc code xxx typically show up on sites a,b,c,d,e,f,g because they have the ability to read floc identifiers originating from those sites.
To EFF your floc code is just noise.
To large ad networks, they see that people with floc code xxx typically show up on sites a,b,c,d,e,f,g because they have the ability to read floc identifiers originating from those sites.