Because developing on that many web standards when the other three have such a huge market share is unnecessarily onerous.
Not supporting one browser or another is rarely if ever a stand against that browser, it's just a decision based on living in reality. I've used and liked Opera in the past, but I've never once tested so much as a web page in Opera since I stopped using it as my primary browser.
There's always a post like this. Who gives a shit about Opera at this point? It's hard enough making a complex web app work on IE, Chrome and Firefox as it is.
When they take away opera they will take away firefox, then they will take away the next one. One day we will all be using chrome.
I think they should warn about compatibility but allow us to proceed anyways. Often when I spoof opera to identify as firefox everything works fine. The `built only for this browser` scheme treats the browser as the platform and not the internet as the platform. I understand the practical motivation for perspective, having spent many hours making sure my design worked in IE and Firefox, but I dream of a world where every-browser will render things identically.
Ultimately, its called a webpage not a chromepage.
Not supporting one browser or another is rarely if ever a stand against that browser, it's just a decision based on living in reality. I've used and liked Opera in the past, but I've never once tested so much as a web page in Opera since I stopped using it as my primary browser.