kinsley,
From an SEO perspective this is very true. But websites aren't just for search engines. Your visitors should come first.Compliance will certainly help with future-proofing your website and give your audience the widest possibilities to view your site as you intended it to be viewed.
I think W3C will come more to the fore as alternative platforms for viewing content become more prevalent.
-- This message may have been cut off and the rest will only be shown to members. To become a member, click here --