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by tinus_hn 3276 days ago
Sure, 'quite reliable' beats 'unique' every time!
2 comments

Unique becomes unreliable the moment users delete their cookies.
Which they of course do much more often than change one of the finicky parameters that constitute these unique fingerprints (which in reality tend to not be unique to begin with)
You can get unique through things other than cookies. Like abusing ETAGS/If-Modified-Since.