With what exactly? They are desperately trying to create a "marketplace" and become gatekeepers on the backs of developers and businesses alike. There's no innovation here.
Knowing OAI's history, only big whales could survive being copied by the platform's owner—case in point: Amazon Basics. They're so big that most of the time, SMBs can't escape them and don't have a choice but to cave to Amazon's demands. Is your product successful? Great, I'll copy you, add the "Amazon basics" label, and start bombarding users with my "product".
Amazon basics is a private label just like Costco and the Kirkland Brand. Same thing with Walmart, Target, Trader Joes, etc. And if these SMBs don't have to deal with Amazon, they will have to deal with a dozen copycats from China for anything that becomes a hit.
For me the most annoying thing is APIs arbitrarily changing all the time. Completely change the entire Tailwind, ESLint, AWS SDK, etc APIs every 6 months? Why not! Heaven forbid you don't touch a project for a few months, blink and all your code is outdated.
I'd much rather see a thriving ecosystem full of competition and innovation than a more stagnant alternative.