No, so flip that: I don't have access to any FB info now, and I don't need it for anything, so I'd like to find a way to validate people without bringing out the privacy concerns of FB connect.
It's an incentivized survey that we'll distribute through ads and word of mouth (i.e., forums and the like) to pass around 2,000 people through it, none of whom we have emails for now.
So can you make the first page of the survey a request for an email address, which you send a verification email to. They enter their email address, you send them an email with some sort of uid in the url, they then click that link to continue with the survey.
Obviously, you'd need to log the email address to make sure you only send one email to each address, but that should be the only thing you'd need to keep a record of.
This would seem to provide enough verification of individuals, without too much assing about on the end user side.
It's an incentivized survey that we'll distribute through ads and word of mouth (i.e., forums and the like) to pass around 2,000 people through it, none of whom we have emails for now.