It's very ironic that those who bashed Bush for eight years, sent emails bashing him, making fun of him, and trashing him, now invoke the *Shut Up* attitude when it comes to Obama.
Do people think that just because they prefer Obama that there weren't people who liked Bush, and took offense to the attacks on him and his supporters?
No one should EVER shut up. We won't always like what others have to say, but people have a right to say it. And the more people try to shut you up, the louder you should yell. It means you are doing something right.