uniqueness, on one way or another, does not imply you're a real person. those systems probably don't even rely on fingerprinting for those decisions - you just

uniqueness, on one way or another, does not imply you're a real person. those systems probably don't even rely on fingerprinting for those decisions - you just can't deny someone acceess to a service because "they're unique", you're opening a can of worms. entities that do deny access based on fingerprinting actually do it based on same fingerprints corresponding to a marked visitor (like checking behaviour and marking all subsequent visitors with that fp as bad) - but it's a headache. what you describe usually has more to do with your IP (range, usage type, country), your useragent or added/modified headers (check any extensions that do this) i had exactly this happen some years ago when i added a `'` in the UserAgent to test a site for SQL injection and forgot to remove it.