There's recently been a lot of noise about a return to the browser wars (Alex Russell, Jeff Croft, Stuart Langridge, James Bennett). The point being that standards take eons to complete and standards bodies aren't the right people to be inventing cool stuff for us to use on the web, it's us and the browser makers that should be creating the cool stuff for the standards bodies to codify. Ok, that all sounds great (albeit an incredible simplification of a multifaceted issue). So, let's go out and push that envelope.
In order for the future to be better by a large amount, it must be different by a large amount.
Of course Alex Russell's comment above is obviously true. There are plenty of people out there pushing boundaries, creating the future. The thing that concerns me is that there is a significant crowd of developers who use arguments against the cool-stuff-limiting effects of obsessive validation to dismiss validation completely.
"Hey, your web site is broken."
"Meh, read this."
"Um, but your site is broken in stupid, careless and lazy ways. You're not pushing any boundaries here, and you're damaging accessibility and the users' experience."