I have also looked there and what makes me unique is that nobody else has the same list of installed fonts, which is not a surprise for me, because I have bought several commercial high-quality typefaces, while most people have only the fonts installed by the operating system and by popular office suites.
Besides the fonts, only 3% of the people recorded in their database have their monitors configured for 30-bit color.
Therefore it appears that taking good care of my eyes makes me easily identifiable, but there is no workaround for this, except for running the browser in a VM, where the characteristics of the hardware and whatever else is installed could be well hidden.