Attention readers: For some reason I cannot comprehend people use the internet in 2012 with javascript and cookies disabled and then whine when some things don't work.
Computers in 2012 are less powerful than a few years ago - many (most?) people will be using tablets or smart phones and thus using ARM processors with low clock speeds. Internet connection is also problematic. People may be using nice fibre-optic broadband with low contention. Or they may be stuck on dial up. Or in a country like Australia with very expensive connections. Or on mobile connections with poor bandwidth and high charges.
[1] I'm not saying this website's javascript is poor.