You conflate doing something with sharing it online. A lot of people do things for themselves, then they post about it and share it because they like the idea of someone else enjoying and getting something out of it. The thing LLMs might get them to stop doing is not the doing of the thing, but the sharing, to the detriment of everyone who actually would have liked to see it.

And no, people sticking to the LLM summary won't get the ideas I shared. They get a crappy, broken, incoherent, messed-up, bland, averaged version of it. Purified of all the personality, insight and thought it might have had in it. That's why people getting an LLM summary partially derived from their data will never seem like a suitable replacement to someone who does it not for the views or credits, but because they actually want to share something of themselves.

I do agree that the solution would best come from the demand site. People realising the inherent blandness and horseshitness of LLM replies, especially when compared to something written by an actual human with thought and intent, ditch the low-quality LLM turds and demand real content again. The problem I see right now is that pretty much everyone would prefer the human version to the slop, but the megacorps force-feed the slop and spend billions trying to make it as inconvenient as possible to interact with other humans.