This has been possibly the coolest use of Google Docs I have seen
Seriously, did you know getting on the interwebs reveals your IP address :p Someone could run a full suite of penetration tests on your IP addr to get to your end-point or router.
If you don't want to be contacted, then don't add your information. I'm not sure what you're suggesting is the problem, but perhaps you can suggest a solution?
You obfuscate your email addr so that it's human-readable and not spam-bot readable. Or just add your twitter username instead, or whatever choice you prefer.
You reveal your Google Account (and e-mail address for most people) just by viewing the page, without typing a single character into the page.
Basically, the consumers of the content (the people just wanting to see what's on the list) want to be completely 100% anonymous. I wonder how the producers of the content (the people entering their information on the spreadsheet) would feel about that.
Well there you go, as suggested above.. you can always logout first - or create a dummy account. Google sign-in is arguably one of the commonly used on the Web, even if you're really anti-Google .. having a dummy account would be real handy.
Excess paranoia, on the other hand, is another topic.
Please contact med hurriedly so we can go get money together.
"Dear Sir,
I am writing to in a matter of utmost urgency and secrecy. My name is Olamilekan Smith, close personal advisor of the deposed aristocrat Charles Bartholomew Richards ii. In his haste to escape persecution he hastily imposed upon me the task of securing safe transfer of his considerable monetary assets to an international bank account..."