Yes, people steal ideas and sell as their own. That is actually happening. Communities share less publicly, but if you know how to poke, you can find a gem or two. Anybody actually productive with LLMs just doesn't want to invest energy to fight the unwinnable mob mentality. I don't remember any time in my career, where you got such a backlash for using a tech.

One example of a an absolute gem is this: https://youtu.be/vlD8CXr20OI?si=J2A5nrqjkFCqU_6R

Had I been still working with computer graphics, this would've been a true game changer. You can see how little views this video has. There is however a whole subreddit dedicated to sell this exact workflow (and even only the first node). There's a similar story with programming, but people are disincentived to share that. Github Copilot has potential, but seems abandoned already and I find it very odd, because it's the one product with actual substance