Just for the record: the "leaking errors" is fixed (and yes, that was bad), the site is responsive again (the server was too loaded with other stuff, so the additional traffic the article generated put him over the edge)

Done since maybe 2 hours :)

Er, I still see the backtrace . . .

where exactly? on the flickr image? Or actually on http://blog.liip.ch/?

Even if there should be an exception (which of course can happen), it shouldn't show the stacktrace anymore. But we're not perfect, so I wouldn't rule out anything.