Bigotry etc.

They like it because they think that all the people they don't like or don't approve of will go to hell.

Wait... you mean they might not, lol.

I've actually thought a time or two I wouldn't want to go to heaven if some of the people who are convinced they are going would actually be there. Just give me a live and let live type of place in the sky to retire to and I'll be happy.
 
Hell makes sense only if you think "an eternity" is just a long time.

Otherwise the punishment is disproportionate to the crime.

As for bigotry, I say if the poster can stay engaged in a civilized debate, don't ban them. But if the poster is abusive towards others and abrasive, then infract them until they either wise up or end up permanently banned.