Your personal experience is meaningless. Autism and Aspergers are not the same for everyone. The fact that you are typing this is proof enough. But when you suggest that autistics who stim by slamming their head into a wall don't need special treatment, it's clear you don't understand the full ramifications of what you are suggesting.

Autism is a spectrum. It's not one thing.

> And with things like ADD the `treatment' was almost always much worse than the condition itself.

As someone who was recently diagnosed with ADHD, and is currently taking medication, I can assure you, that's not the case.