We didn't want to ban an entire service! Unfortunately, it wound up being the easiest way -- hence, our attempt to avoid doing so failed.

I've used Mibbit as my primary client for a year. I take offense at your blanket statements about the "type of users that use mibbit".

You are an outlier. The "type of users that use mibbit" were consistently abusive, difficult to deal with, and ultimately detrimental to our communities.