I don't know him, so i can't postulate whether or not he is "good or bad"
The only thing i have to go off is his presentation of his ideas, blatantly stating that if you do not believe what he believes, when you die, you will burn and suffer for all the rest of eternity.
Personally, i don't care what anyone believes, just as long as they either keep it to themselves or present it in a way that is not harmful to others.
So when someone presents a belief... or more accurately an idea that they think is true, and that person insists that if i don't believe in their idea that i am going to be tortured for all eternity when i die, personally... fuck that guy, and fuck his beliefs.
It goes the same way for me when prejudice people talk about how homosexuals are an abomination and will go to hell, or how blacks aren't humans and deserve to be slaves... FUCK those guys.
This world isn't as perfect and connected as most spiritual people think, there are more people out there that are bigots than you might assume, and ill be damned if I'm going to stand back while they parade around spreading their hate, prejudiced, sectarian, xenophobic, anti-semitic bull shit.
In my opinion they deserve to know that what they are saying is fucked up, and it is our moral duty and responsibility to let them know how fucked up their thinking is.