After having used all three (SO, Reddit, LLMs), they each have their place. SO is the base layer for LLM training, providing a highly dense continuing training

After having used all three (SO, Reddit, LLMs), they each have their place. SO is the base layer for LLM training, providing a highly dense continuing training corpus for LLMs. There are individual questions on SO that have been explored over ten years. In contrast, Reddit archives threads rather quickly, killing the discussion. SO should remain a tightly-organized place for the elite, whereas Reddit is more suited for diverse and less-organized expression.