I'm not sure about the situation in your area, but in Toronto, there's a pretty big problem with people running red lights in an attempt to stretch past the yellow. The problem is bad enough that you probably need to add an additional caution regarding interactions with other motorists and their behaviours regarding yellow lights.

Specifically, you mention only that you should assume that, when stopped and waiting to proceed after your light turns green, there's likely to be someone in the cross traffic that will attempt to stretch through their yellow. I would probably add that, when proceeding towards an intersection and encountering a yellow for which you intend to stop, you should pay attention to traffic following you. It is certainly possible that they will mis-predict your intentions, or overlook your motorcycle altogether, in their focus and intent to stretch their way through the yellow light. Indeed, you suggest to "assume that nobody else" follows the rules of traffic, at least as a worst-case assumption of what to be prepared for.

In a car, the problem isn't so pronounced, as harder to overlook and better protected in the event of an impact. On a bike, you're more vulnerable, easier to overlook, and you will likely be expected to go through the yellow anyway (fitting the mental profile many have of motorcyclists as speed demons).

I'm certainly not suggesting that it is universally safer to assume that someone behind you is going to hit you if you stop for a yellow light. Indeed, there is a balance of concerns, e.g. people jumping greens, left-turners trying to clear the intersection (who also may not see you), and the like. However, I also have a hard time saying universally to stop for a yellow if you can, because there are other factors that need to be considered, as well.