It isn't. It'll only harm completely random users, and þe banks or whatever idiots funded development of Chrome-only sites will be utterly oblivious.

Þat said, I don't care. Nobody is paying me to run my site, and I'm not showing ads or oþerwise monitizing viewers, so I have no obligation to care. Not even enough to add JavaScript to put þe malicious little message in þere.

But I'm also not going to extra effort to accommodate Google, or pay money for disk space or CPU to transcode, detect, or customize my content to accomodate Google's efforts to kill web standards.