Yes I understand that much better now. I think you could have taken a couple minutes to say something on my other points. And these are things I believe helpful to mention in the user guides. In the end after I filtered out for myself the outputs related to CSS3, this product did a fine job helping me clean up my pages. I did find that it took several runs of the validator on each page to find all of the errors. Rarely did one pass find them all and new ones surfaced with subsequent runs.