There are many reasons that "I used AI to do it all and now I've got $REAL ARR" strikes me as unlikely. To name just two:

1. I code with LLMs (Copilot, Claude Code). Like anyone who has done so, I know a lot about where these tools are useful and where they're hopeless. They can't do it all, claims to the contrary aside.

2. I've built a couple businesses (and failed tragicomically at building a couple more). Like anyone who has done so, I know the hard parts of startups are rarely the tech itself: sales, marketing, building a team with values, actually listening to customers and responding to their needs, making forward progress in a sea of uncertainty, getting anyone to care at all... sheesh, those are hard! Last I checked, AI doesn't singlehandedly solve any of that.

Which is not to say LLMs are useless; on the contrary, used well and aimed at the right tasks, my experience is that they can be real accelerants. They've undoubtedly changed the way I approach my own new projects. But "LLMs did it all and I've got a profitable startup"... I mean, if that's true, link to it because we should all be celebrating the achievement.