I use a pre-OSX mac and nothing past OS9.x.x will run on my machine. I can't afford to buy a brand-spankin' new computer. None of the browsers are being updated for Macs like mine when new standards come out. LJ is developing for the most recent standards. As a result, S2 breaks Opera and looks CRAPTASTIC on IE. Sometimes it's *completely* broken and illegible. Netscape isn't any better.

I tend to reply less when folks use S2. I might have to dig out the code I can use to force a layout to my template or the default template for purposes of replying.