I've shared it on Mastodon. When it comes to spreading the message of left communism, I'll strive to contribute. However, I have doubts about the relationship between left communism and autonomism. To my knowledge, left communism is quite distinct from autonomism.
On the article: I agree with the article's author that organic centralism can be applied by proletarian organizations without requiring a party structure; it's more of an imperative need for such organizations. This requires understanding organic centralism as a line of action designed to prevent counterrevolutionary and opportunistic deviations. But here I do see a point of tension between Bordigism and council communism: for council communists, democratic functioning is important, while for Bordigists it's merely a tool that may or may not be used, but shouldn't be sanctified.
I've been thinking about this question, and I believe the Platformist libertarian strategy can address the same issues that organic centralism attempts to solve. The concept behind Platformist organizations is that they can coordinate and give direction to social struggles based on militant experience. Their goal is to create a specific anarchist organization based on prior agreement on core principles and methods.