[aktiur]

It is a peculiarity of French administrative law. It's not a court that fined Mish, but an Autorité Administrative Indépendante (AAI or independent administrative authority, but I'm sure you did not need the translation) with the power to fine people (there are only a few).

Basically, if he appeals, it will very probably be overturned by a proper judge. Another AAI in charge of the regulation of the telecommunications sector got striken badly by a decision of our Constitutionnal court (no less) which suppressed its power to pronounce sanctions, judging the protection of the rights of defence was not effective. It's going to end the same way here I would say.