This is what UWP Editor Peter Rowlands said about the registration “We have had to introduce e mail verification for the latest 6 issues of UwP in order to quantify the exact number of times each issue of UwP is downloaded (and to stop the search engine robots downloading UwP!!). Providing your e mail address has no hidden catches what so ever. Your e mail address will not be given to anyone else and will only be used to keep you informed about UwP.”