I disable it for sites that abuse javascript. I'm guessing I am not the only one that does. Probably quite a few people would do that outside of us developers if they knew they could (or knew the a site's major problem was derived from it). Not inferring anything about this particular site, just that there's good reasons to turn it off at times.
I normally browse with it on by default though, but I'll blacklist it for sites that cause my browser to slow down or do other things that are detrimental to the user experience.
