More Websites that don't work

When is Opera going to get their act together and make things work?  
Why do all my other browsers display pages fine but Opera doesn't?
Camino, Flock, Safari, Firefox all display fine.

GET WITH THE PROGRAM, OPERA!

Latest disaster:  http://erideshare.com
Oh, and Ebay is still a total write off.  Javascript just sends Opera 
into a tizzy, with the Activity Monitor showing huge CPU usage.  Often 
it just freezes.  So much fun.