Why vB4 default theme was not a responsive design?

[webmastersun]

Originally Posted by Dragonsys

Lats week actually, but the reason I say Google does not require it, is because the mobile style works

I am aware what the discussion is here, but I'm saying that the current mobile style works for Google's requirements, even though it is rather ugly and not fully functional.

If you are not a SEO specialist then your answer is quite true but it is total wrong if you know more knowledge about SEO to distinguish between mobile style and responsive design on SEO aspect.

Of course you use mobile style, you can pass Google's requirements here
https://www.google.com/webmasters/tools/mobile-friendly/

But on other aspects, responsive theme is always better.