Because people believe that it would lead to people buying votes. If you were allowed to,show proof of a vote, people could get paid to vote a certain way. As it is, there is no way to be sure that the person you paid to vote for you did.
Idiots. Ballots don't have names on them. Once it's in the box or the button pushed on the machine, the vote is cast. You can't DISQUALIFY a vote. That said, Justin Timberlake did the same thing. No one called for his vote to be disqualified.
AMERICA WTF IS WRONG WITH YOU?! TRUMP IS ABOUT TO BECOME YOUR FUCKING PRESIDENT WHICH MEANS I CAN'T GO TO STUDY THERE, WHY HAS AM MY HAPPINESS DISAPPEARED IN 2016. FIRST BREXIT AND NOW YOU PULL THIS SHIT
Does that make me, an American, richer or poorer?
Trump won. Kbye. Whaddup UK?