Marxist Lennists instances differ from anarchist ones in one key aspect: freedom of association. The fact they banned you for anti Xi rhetorics instead of engage your appropriate criticism in earnest is why ML instance do not praxis intersection. Only if it becomes convenient to ally, they’ll support you until you're no longer necessary:

do anarchist instances suffer from the same moderation prejudices of communist-centric ones?
In short no, because we comprehend folks come from many different backgrounds and biases, and as anarchists, we try to intersect to break those biases down. We outreach instead of silence.