I guess, the trivial inconvenience of the user having to return, recreate the lineup from scratch and remember the 10 digit number/salt (or pull from local memory/localStorage if its the same device) . They would have to do this after the start of the first game but before the end of all the events in the event group. I.E before winners are calculated. If you didn't force the players to do this early on, you wouldn't be able to see live rankings which would take some fun out of it I guess. There would be other problems I guess to with edit lineup functionality.
It is a good idea though and would certainly curb this kind of thing happening.
This is suprising but now compare this to rainforest devastation in the Amazon and the rest of the world and I doubt we're in the positive overall which is what logically counts.
People were discussing the legitimacy of this release. I read the release, googled the authors name and I thought his history relevant to the conversation. Not just ties 'deputy assistant to President George W. Bush'.
"From January 2003 to January 2005, Ullyot worked in the White House as associate counsel and as a deputy assistant to President George W. Bush. He then served as chief of staff to U.S. Attorney General Alberto R. Gonzales."