It's a good question/comment. I think someone has to earn the right to be taken seriously and to be considered competent. ... Basics first... then you're qualified to discuss someone else's basics. Upward in skills from there.
The topic is a martial art. If those here are anything like me, they ceased to care seriously about the unsupported criticism of others at just about the same time that I stopped caring so much if somebody took a swing with malice aforethought.
The only gate keeper here is Jun.