So an educator that believe a track records is important, a legitimate "minimum requirement" for his potential costumers, may be able to show a track records possibly over the years, in just one page with an equity line and some metric performance. (without the need to post useless long streak of trades that nobody check)
Any educator who could back his method with a track record would 10X or even 100X his sales if he provided a good track record. Seeing how very few or none do this - we all know why.

That's not to say an educator might not have something of value to teach or put forward to help someone who's new in this business, but at the end of the day who are you to teach someone else if you didn't make it yourself?
Many years back now I was following an educator who I believed to actually be the real deal as he seemed to trade himself. I never gave him any $$$ except for a few e-books. Fast forward a few years later he seemed to be more of a vendor than a trader. I was actually surprised when he in e-mail tried really hard to sell me his private course. Of course, I passed. And later on some fellow student found the performance on one of his mechanical systems which were pretty bad.
Still picked up a few good lessons from him.
