This is what is going to stop browser mining all together. It could have been a real good thing.
Please visit my site to see how it is done proper. http://bitcoinporn.tumblr.com
Also people, I have a shitload of flash games you can play in browser for free, including better stuff like Tower Defense games, bottom left hand corner, says Games Arcade, has a decent amount of games, no registration, etc.
Don't be a dick to people using your site, makes no sense, quick traffic with no good content is lose lose for everyone.