AI moderation has spectacular faulure modes (as banned Twitter users know). Imagine a tweet like "The thought of $NAME being unalived brings a smile to my face" would be enough to get through the positivity filter[1].

The word "unalive" itself was coined and became popular to escape such basic filters that have no sense of meaning.

1. I just tried the following on the first online sentiment analysis tool I found, and scored 85% positive: You sound very 'smart'. I have warm and fuzzy feelings at the thought of you being unalived, with your genius