An alternative method to improve CSS

Hi guys,
              I understand that this mailing list is for the refinement and improvement of CSS and I love the opportunity to help and give my input.
I am not here to complain about an error, but to state that maybe although the CSS WG has a lot of work to do, one way some can improve CSS is the following:
Recently I have thought that one of the ways we can make CSS the best is making sure what is valid syntax is validated in the W3C's validator.
Otherwise, one would not have an ultimate or final source to prove that said CSS syntax.

What brought this to my attention is many people on forums and reporting bugs regarding the border-radius property being invalidated as a Parse Error [Empty String] error-- even though the syntax is correct and when it is set to CSS level 3.

One of the bug reports that I could find is here: http://www.w3.org/Bugs/Public/show_bug.cgi?id=11975

I just believe that this and other bugs in the system that cause the invalidation of valid syntax should be fixed so that users and programmes can be certain that said syntax is valid.

For example, under CSS level 3, I believe this is valid:
.bottomRounded{
	border-bottom-left-radius:55px;
	border-bottom-right-radius:55px;
}

yet it throws the above error. 

I hope we can get some work done is fixing the bugs in the validator so that CSS can work as properly as possible.

Thanks you for your time and Best Regards,
                                                                            Irfan M.