On Mon, Jan 3, 2011 at 12:38 PM, Phillip Gawlowski <
cmdjackryan / googlemail.com> wrote:

> 2) Given that there's dozens of free email services out there and
> making up a fake name is trivial, how do you suppose to stop the user
> signing up multiple times, anyway? Short of using credit card numbers,
> and I doubt you can verify those with the issuers, anyway (PCI
> compliance is not something you want to burden yourself with).
>
>
Of course, if the site lags a little bit, and they impatiently click the
button five times, you don't want to displace four other guests.