In article <63BCEF0D-E6FC-4E10-A4B2-3E4CC122B9A6@xxxxxxxxx>, Yoav Nir <ynir.ietf@xxxxxxxxx> wrote: >How does a fee eliminate Donald Duck registrations? Thereâ??s nothing preventing me from registering *now* for >the Prague physical meeting as Donald Duck as long as my $700 are good. I believe that the assumption is that few people are likely to waste $700 each on multiple fake registrations. Also, if the identity of the person becomes an issue, the credit card used to pay is an excellent key to use. R's, John