He's an atheist.
He doesn't believe in demons, devils, ghosts, gods, prophets,...
Give it a rest already.
You're turning this into a gigantic ad hominim.
"appears" being the operative word here. And I'll also add that it just appears like that TO YOU, because you have some (rather silly) "image" in your head of what a satanist looks like.
I'll also note, that even being a "satanist" or a "YEC born again christian", doesn't automatically make your arguments fail.
Arguments fall and stand on their own merrit - no matter who brings them or what they believe.
Because someone wearing a clown costume can't possibly build a valid argument?
Because what someone looks like has direct impact on the validity of their arguments?
You should look up what an "ad hominim" is.
Would you feel better if he had the iconic messy grey hair, the stereotype hairdue of the "crazy smart professor" a la Einstein?
PS: Hovind is an ex-convict just released from jail. So, what now? Will you give him the same treatment? Or do ad hominims only work on people that disagree with you?