I run on Safari, too. Does this happen whenever you open a multi-page thread? That was my experience. If I accessed a multi-page thread by clicking on the topic title, I'd often crash. But by clicking on page "1," I'd get the first page and be able to follow along thereafter. I clicked on the link you provided and didn't have a problem.
I just became a supporter this week, and the banner ads have not been turned off for me yet, so I kind of doubt that it's the ads that are the trigger. Good luck!