I see your point, but that's a pretty "cute" way to phrase what happened. It makes it seem like he was arrested and charged for what he did on facebook.
It's important to remember that jail is for innocent people, prison is for those that have been found guilty. We don't know why the case was dismissed, but I think it is rather safe to assume that it wasn't a very strong case. So bail might "ordinarily" have been rather likely.
I do think it is pretty bad that you can be jailed for a year because of hanging out with childhood friends in pictures.
I do think it is pretty bad that you can be jailed for a year because of hanging out with childhood friends in pictures.