I took two days of training for Scrum product owners. At the end of some excellent training the trainer said, "We're going to send you a certificate that says you're a certified Scrum product owner. Take that certificate and put it on the wall. It doesn't entitle you to tell anyone anything. It will be there to remind you that you don't know anything yet, you really don't. But it's your job to learn everything you can and put it into practice."
That's the kind of pep talk people need to hear when they get a "certification."