Web2.0 goes bump (again)

Flickr is currently displaying the following header message on all pages:

Is Flickr acting weird for you? That's because the servers are running HOT right now.

Same questions arise as before. We all thought there was now only one way to skin this cat--that webdev was completely commoditised and that reliable scalability was no big deal. Apparently not;-)

It'd be great to be able to read a report from Yahoo/Flickr on the technology they're using and why it goes wrong...