What is incorrect about what was said. I went to the site and while I did not complete the registration, it certainly appeared that you were certifying among other things "I will not fly over 400'" in order to obtain a registration number. While not flying above 400' is just a guideline, it would certainly seem that flying over 400' in violation of a certified agreement could nullify your registration and there are consequences for flying with out registration. Just because it's a guideline doesn't mean that there won't be consequences if you agree to follow it and then don't. I would certainly like some clarification before agreeing to something like that.