there doesn't have to be moat to provide some value to some people. These are mostly indie hackers trying to build a nice UI/UX on ai workflows to actually make them usable by general population. Even with retrieval integration of OpenAI, some people will prefer askpdf or likes, or even won't know about openai integration in the first place to consider switching. Or maybe you can build a better UX than openAI since maybe they are too bloated to know what the user actually wants?

This point of view is too simplistic, not everything needs to be a billion dollar idea or differentiated. You can make an absolute good living with no moat and good product senses. Even if you get outgunned, you move on to the next opportunity.