When companies create rules like this, that tells me that they are very unsure of their product. Either it doesn't works as they claim, or it's incredible simple to replicate. It can also be that their entire business plan is insane, in any case, there's something basic wrong internally at OpenAI for them to feel the need for this kind of rule.

If OpenAI and ChatGPT is so far ahead for everyone else, and their product is so complex, it doesn't matter what a few disgruntled employees do or say, so the rule is not required.