I think this is poorly stated, in that the first two or three times I read it I think I got the opposite claim that was intended, and so did the one commenter before me. To rephrase verbosely to be sure:
If you are honest and privacy-preserving, your glomarization must be perfect.
If you can’t glomarize and want to preserve privacy, you must be dishonest.
If you can’t glomarize and are honest, you cannot protect privacy
Though you can go partway − 80%-perfect honesty and 80%-perfect glomarization is probably good for 80%-preserved privacy.
I think this is poorly stated, in that the first two or three times I read it I think I got the opposite claim that was intended, and so did the one commenter before me. To rephrase verbosely to be sure:
If you are honest and privacy-preserving, your glomarization must be perfect.
If you can’t glomarize and want to preserve privacy, you must be dishonest.
If you can’t glomarize and are honest, you cannot protect privacy
Though you can go partway − 80%-perfect honesty and 80%-perfect glomarization is probably good for 80%-preserved privacy.