Weblog:   What Happened to my Safari?
Subject:   Lost in the Jungle
Date:   2005-08-24 01:50:46
From:   F.J.

I indeed noticed some oddities with the latest builds of Safari, the occasional JavaScript-induced slowdown being the most notable -- some forum sites , for example, require a full restart cycle every hour or so.

It looks like the Safari team has had to bring the application to a certain compatibility level very quickly -- probably so as to ease the remaining dependency on the venerable Internet Explorer -- but wasn't given the time and/or resources to put the finishing touches and keep improving other aspects of the code.