This is the only line you really need from the entire page:

That’s the idea behind our new OpenAI Certifications.

It is an age-old idea. People were getting Cisco, Microsoft, Oracle, AWS certificates to pad their CVs for ages. This is a legitimate way for a person to put a well known logo on their page and an easy way for companies to make a few bucks. OpenAI wants that as well.

The certificate means nothing. The course for it teaches nothing. But a CV with an OpenAI logo on it looks better than without and OpenAI wants people to pay for the privilege.