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> All in all, a slanted site fit to push an agenda. What kind of agenda is it trying to push?

The EFF is a lobbying group. Presumably pushing the agenda they lobby for - namely digital rights and privacy as they would envision it.

If it doesn't take correlations into account, then the total # of identifying bits (aka entropy) will simply be the sum of # of identifying bits in each category, which does not seem to be the case. Therefore, I will guess it does take correlations into account (presumably by calculating the total # from uniqueness of the fingerprint only).

My IP address changes daily. As do the IP addresses of most people in several countries.

That’s enough to track you across recent sites, and if any of those sites use a cookie that spans a day, to track you across days.