Matthew, for what it's worth, here are my .02
From time to time I "hiatus" from the forum due to duties and obligations that don't permit me the time to read it as much as I would like.
Inevibably when I return to catch up, there's an "icterus", baiting and insulting with lots of sarcasm. I observe some good forum members losing their temper in frustration, which indicates these troll types are an occasion of sin.
After perusing the latest troll's posts, it's the same old forumula - so now I just skip his commentary, and I encourage those who see the un Catholic technique to do the same. Just don't read the comments and don't engage. It's really that simple.
However, it may be in the forum's interest to investigate a troublemaker. The alias cleverly suggests a duality.
Chaos is not sewn by the hand of God.