1. AI models produce consistent output, so it looks the same everywhere, which makes you look like a hustler if you use it for copywriting or design.
2. Customers who are fine with this can use Lovable for $20/month, so it's loser's game to chase those customers.
Guy thinks this is his niche. Everyone will go "that's neat" and move on with life.
There was another post on here recently by a translator, whose profession is translating documents, declaring that they won't use AI in their work and anyone who does is a noob and it is no threat to what they do...and it just was amazing stuff. Of course HN pandered to it with lots of "oh yeah that's right you show 'em", but surely we all realize how fantastically silly that was. A web developer / designer who refuses to use AI is rapidly going to be very unemployed, though they might try the purist "no AI here!" angle niche for a tiny delay of that inevitable.