Sure. It wasn't perfect, all browsers sucked in different ways back then. Mozilla was slow as hell, IE6's CSS support was amazing etc. This was in 2001 and XP h

Sure. It wasn't perfect, all browsers sucked in different ways back then. Mozilla was slow as hell, IE6's CSS support was amazing etc. This was in 2001 and XP had just been released. My point is that whatever the state was back then what followed couldn't have happened if IE6 was open source. Mozilla could have simply built it as part of Firefox, shipped it as a legacy rendering mode, and nobody would have had Windows or IE6 lock-in to use some legacy website.