Re: The Validity of an Instructor
Well I would not go so far as to say none are bad - but generally Aikido seems to have avoided some of McDojo pitfalls.
Rupert's skill comes from experience - by nature (I suppose) he looked around before buying and bought well the first time. His soccer analogy holds water for him because you can easily see a lot of players at different levels quite easy.
Most of us are lazy or just don't have the opportunity to observe the wide variety so luck plays a far bigger role. And let's face it - the second part of human nature is to convince ourselves what we do is the bestest and the mostest. It is a trap easily fallen into.