Should "papist" be a banned word?

I got a kick out of this:

"Hello!

There are a bunch of Catholics on my IRC channel called _____ on the _____ IRC network, who would like me to ban the word "PAPIST".. and someone found your website, and so I thought you might want to join the channel one day and identify yourself, and tell them to just chill out!

I'll have to consider it...