User blog comment:Jemann/The Forgotten Quarter gets a makeover/@comment-5137465-20130703193326/@comment-1264592-20130703213943

I've entered your results into the spreadsheet. Sadly they make my tip less useful because the chance seems to be deviating from the original 50/50.

I understand (and share) your concern about Google privacy. To check whether you'll appear named or anonymous you can go to My Drive and see whether you're logged in. If you are, you can can log out and can enter the spreadsheet anonymously (though each visitor is marked by a semi-unique color). By default all users are anonymous.

Regardless, Google doesn't show your username, but your email with which you sign into Google. I don't know whether this allows to discover your real name/username eventually or not.