Rupert Atkinson wrote:
This is really simple - you will find exactly what you look for.
Most high kicks are martially useless because most people can't do them, and many of those who can can't do them well. But, if they have trained well, then high kicks can be very useful. Since most people can't do them well, it follows that most people say they are useless. So, why not try finding someone who can do them well, then ask them what they think? But I think we already know the answer.
Yep, that was what I was beginning to think...
As regards the aikido related posts, I'm pretty well aware that my own aikido training doesn't deal with kicks at all and this doesn't bother me. I was really more interested in high kicks in a general sense and (I guess) from the point of view of the kicker rather than the point of view of the aikido practicing kickee.
I guess the other interesting thing that I'm learning is how much of muay thai is about punching rather than kicking anyway!
 so yes, this is spectacularly off topic