I have no idea what this means but:

Within our dataset of about ten thousand visitors, only one in 181 browsers have the same fingerprint as yours.

Currently, we estimate that your browser has a fingerprint that conveys 7.5 bits of identifying information.
I think being uinque is bad because it means sites can track you even if they don't know exactly who you are. It's kind of like driving a new Corvette through a run down neighborhood...they know you as "that guy in the vette". At least that's what I'm understanding them as trying to say.