The only detail you need to worry about is that this information will be purchased by ad networks.
Ad networks are some of the shittiest, least secure pieces of software ever written, and are basically instantly hacked by "bad guys".
So the ONLY way you need to view this information is, Any script-kiddie in the world has ALL of my personal and private information.
The fact is that any American can be pinpointed with nothing more than a zip code, sex, and ANY third vector of information.
So now anyone in the world can pinpoint what you personally do all day, every day, and it is a permanent record.
THAT is what the Republicans gave away. For free.