Threatening a guy for making an open source version of replit sounds pretty crummy in my eyes.

I think it's fair to evaluate a company's behavior before engaging in business with them. And I personally dislike persons in power abusing their position, which is why I remembered the company name almost two years later.

I haven't heard of any similar behavior since then, which is a good sign. But a reputation can be a hard thing to shake. The CEO should have considered that before doing what he did.

I think people are smart enough to receive extra information and do whatever they want with that.

+1, this is unnecessary.

Alternatively, it's called consequences of your actions. Don't be surprised if shitty behaviour comes back to bite you.