Stupid Quora noob thinks black belts have "finished learning basics". What do you think of this?

I told him white belts are taught basics in a real karate and ju jitsu class, and Light Green belt and above is considered "advanced". By the time I was testing for black belt, I knew around 200 submissions, around 50 throwing and sweeping techniques, obviously all basic and advanced striking maneuvers, and over 800 total techniques.

A black belt is supposed to be an Expert. I don't know who keeps giving black belts to children and fools who've barely studied basics, nor do I understand why so many "experts" on quora think a karate black belt can't just kick the legs out from under a pro boxer, or else submit him with any of the 200 submissions we know.

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6 mo
Note: I was taught Isshinryu Karate and Japanese Ju Jitsu in tandem, which is why progression is slower than a pure Isshinryu black belt, because there are also far more total techniques to teach and learn.
Stupid Quora noob thinks black belts have "finished learning basics". What do you think of this?
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