This is probaly just another case of un-educated developers, that probably use Dreamweaver cos they don't know HTML and Visual Studio co's all they can do is press buttons like monkeys. Unlike monkeys they can't think for themself.
I'm feed up with soddy websites that lock everyone out that's not using fucking crap IE. These people should go back to school.
http://www.marksandspencer.com/disallowed2.htmlThe above is an example of a site that blocks Safari for no apparent reason, again developers that can't do their job. I'm sure there are many, many sites out there that do this to Moz as well.
The only thing that I would say about Safari is that it is after all beta, are we expecting to much?