Banned words?

Was just trying to respond to the ICE thread in politics, but gave up in the end as I was getting a "banned word" error. Couldn't for the life of me work out what the offending text was; there was nothing angry or outrageous in the reply at all.

Advice on words or spellings to avoid would be helpful. Didn't realise that feature existed on here to be mindful of - never seen it before.