I know very few altruist humans. Whenever someone puts up some content online I believe there is always some motive from the author to benefit themselves even if it's subconscious. Perhaps through ad revenue or exposure from their blog/OSS project or just the dopamine of fake internet points from answering questions on forums. A human may particularly like your content and keep coming back to it or spread it with attribution.

But you don't get any of that from an LLM.