"This isn't about freedom of speech. No one is saying she can't have freedom of speech. This is about an inappropriate behavior in a forum where losing face could have consequences beyond our shores. "
Parents, or leaders will typically scold a petulant child. Perhaps they will be grounded, or do a "time-out."
They don't beat them or lock them up.
The punishment should fit the crime, and I believe community service for Wenyi Wang is appropriate.
I believe she should have to talk about her crime and explain why she spoke out in such an uncivilized manner. :)