Huh -- yet another wrinkle. If you track by IP address, you may have serious problems in the UK, where many ISPs are filtering all of their users through a few

Huh -- yet another wrinkle. If you track by IP address, you may have serious problems in the UK, where many ISPs are filtering all of their users through a few proxy servers (so it will then appear as if all users routed through a given proxy server are all on the same IP...). http://grimboy.co.uk/blawg/in-the-uk-being-told-youre-already-downloading-or-have-failed-the-captcha-too-many-times-by-file-hosting-sites-for-no-reason-you-might-be-being-iwfd/ http://grimboy.co.uk/blawg/in-the-uk-being-told-youre-alread...