1. They can gain at least a temporary advantage by using a proprietary version. They'll have the original devs who can continue where they were before. 2. I wouldn't be surprised if we end up with a situation where LLM-based copyright laundering becomes illegal/enforced, but only in favor of large corporations' copyright, in which case they could maintain the advantage

What would they miss out on? A bunch of PRslop? The "open source community" is now dead.