Suppose there's a road in my neighborhood that's full of potholes. Driving it is a pain in the kidneys and bad for my car's suspension. After I report it to the local road maintenance people, is it ostrich-do to choose another route? Or just plain common sense?
Just because someone is annoying, that doesn't make their posts worthwhile. In fact, the people who have legitimate, substantive critiques of the way aikido is taught generally go out of their way to *not* be annoying, as they actually want to encourage people to think.
(...although, I do love Schopenhauer - but his writing is the most beautiful i've ever read, and he could convince me of nearly anything.)