I use Garage Farm render service, and had to ask them to include a sanity check for this in Max. I mistakenly submitted a render with that checked in the camera and got a really expensive render back ooops.
If you are using the Multipass camera for doing animation previews with motion blur or depth of field, I suggest turning it on to dial in how you want it to look, then turn it off right away. When you make a animation preview you can tell it to use the multi pass effect in the preview dialog (without it enabled in the camera) and it will still give you your motion blur/ DOF in the preview.