Banning Stupidity is Stupid.
If you try to ban stupidity, which is a stupid act, you will create a pair of dock which will tear a new hole in the fabric of space and thyme. Or something like that.
I don't know if this guy has really changed his views about the Holocaust or if he is just not ready to go to jail for his views but his case raises the specter of what can happen if you try to ban Holocaust denial or other stupid and dangerous belief systems. You can end up trying someone over what they used to believe.
What is really interesting here is that, if he really has changed his view it is likely due to what he has learned in his efforts to disprove the Holocaust. If he had simply obeyed the law, he would probably still be denying the it but in private where he probably could have made a case that is strong enough to convince people who know nothing about the topic. You can not suppress ignorance by law anymore than you can suppress the truth.