Because what they serve to Google is the same, the first answer. The issue is that people want more than the first answer or they don't know how to dismiss the sign up modal.
More than anything, people who have issues with this feel entitled to have unfettered access to content because Wikipedia and other sites have been world changing and useful resources without a barrier to entry for reading content.
There was a time when using an anonymous remailer was considered bad taste, but now an email address isn't sacred, things change a lot on the internet over time and it has more to do with how the general public uses it and perceives it than to do with how highly technical people think it ought to be.
More than anything, people who have issues with this feel entitled to have unfettered access to content because Wikipedia and other sites have been world changing and useful resources without a barrier to entry for reading content.
There was a time when using an anonymous remailer was considered bad taste, but now an email address isn't sacred, things change a lot on the internet over time and it has more to do with how the general public uses it and perceives it than to do with how highly technical people think it ought to be.