The YouTube crashing of Chrome still happens on 28-January-2012, and given that the error first started 3 years ago it will take a while to fix. This post receives about 2000 visitors daily, so a lot of people are experiencing this problem. Is this a way for Google to promote the HTML5 player on YouTube, by crashing the flash player :)? Doubt it but makes you laugh doesn't it.
P.S. Are you still using Chrome's autofill option? You won't know what you're missing until you'll install Roboform to manage your passwords in Chrome.
UPDATE 29-01-2012: The issue is still happening but an official Google employee posted this message on the chrome support forum "Everyone else - We've been able to reproduce this now, and are actively working on a fix. It's not specific to updating Flash or not. Please sit tight while we work on the fix...". So we're probably going to see an update here soon in Google Chrome that fixes this crash. In the meantime, if the HTML5 thingy still didn't work for you here's another tip, thanks to a commenter on Reddit: "For me the issue was multiple flash plugins, if you go to "chrome://plugins" there should be an entry for Flash. If you have the same issue I had, you should see it say "Flash (2 files)". You can then proceed by clicking the details button in the top right and disabling the oldest listed flash plugin. I went from constant crashes to zero since I fixed it a few days ago. I hope this helps. If you have 2 of the same version, disable the one in the C:WindowsSysWOW64 path."
It's the second time I get an error while playing YouTube videos from Google Chrome. I reinstalled the flash plugin thinking it's because of it but still happens (in Chrome only, FireFox/Maxthon work ok). The good thing about this though is that it let me know that "The follwing plugin is unresponsive: Shockwave Flash" and didn't do anything about that page until I chose to close it, after that displaying instead of the video itself the sad face:
Who knows, maybe it's because I was watching an "End of Day" video :). Anyone else having this problem, or a workaround for it? Hope it's one of the things they fix in the next update, as YouTube is one of their own products and it should run smooth (true that Flash is not their product).