[tines]

This wasn't meant to be valid code in any existing lisp, just lisp pseudo code. The behaviors you describe as bugs don't exist in all macro systems; for example, some macro systems automatically splice symbols from the context, some automatically prevent double-evaluation, and in purely functional languages double-evaluation doesn't matter anyway. I didn't want to get distracted by these irrelevant details from my main point, which, alas, has happened anyway.