Feed Validation Service fails on soap12

Hi

I've tried using the Feed Validation Service with a soap12 output like this:

http://validator.w3.org/feed/check.cgi?url=http%3A%2F%2Ffeeds.feedburner.com%2FThomasArdal&output=soap12

I get the following result:

Sorry! This document can not be checked. *Excessive traffic pattern blocked*

Due to excessive traffic we are blocking a pattern from a specific browser
plugin.

Please use the form interface on the Validator Home
Page<http://validator.w3.org/> to
check the page by URL.


Why can't I get soap returned?


Regards,

Thomas