Actually, the web is more open than it was a decade ago. Back then I had to use IE-only tricks to make my pages look okay in IE. Today I don't care anymore. It's been several years since I last used an IE trick, and I have no plans of using tricks specific to other browsers in the future. If something doesn't work out of the box in all browsers, I consider this functionality not implemented and do not use it. That's something you could do too and educate others to approach it the same way.