He's a cancerous tripfag who's actually fucking crazy in real life. He mainly tries to defend any attractive crazy female character as some kind of weird way to give himself hope that crazy people can redeem himself. Supposedly is going to school to study behavior.
Despite all this, he has a ton of backwards views and is known for shitting up Avatar threads with his retarded ideas and cropped porn of Azula.
Here's one of his greatest hits.
Also, the guy claiming not to be Scrapper totally is Scrapper. He has the exact same views, arguments, and waifus as Scrapper and got angry when I insulted his waifu like Scrapper does (which I did as bait for him to reveal himself--and he fell for it twice).