>  If it's accessed via GET, then the script ought to be idempotent. Like
>  http://www.google.com/search?q=food

I think everyone is in agreement, as long as we separate out *should*
from *is*.  If we asked the following four questions, I bet there would
be fairly wide consensus on the answers.

1. GET *should* be idempotent (Y/N)?
2. It is safe to assume that a GET *is* idempotent (Y/N)?
3. POST *should* *not* be used to retrieve a document (Y/N)?
4. It is safe to assume that POST *will* not return a document (Y/N)?

So if we don't disagree on those, I wonder what we are arguing about?

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