The reason people won't answer these types of questions is that there are too many factors, and are (perhaps errantly?) concerned about liability. Was there any cross contamination? How long was it left out before it cooled? Will it be reheated to cooking temperatures before it's consumed? What's the internal temperature of the refrigerator?
Many foods, such as rice, also have special concerns. Bacillus Cereus can survive cooking, and if the rice was left at room temperature for a number of hours before it was refrigerated, can produce toxins which will make you sick even if the rice is reheated. This has a tendency to hit sushi places particularly hard.
The truth is that there's no binary "safe/unsafe" with food— it's all about reducing risks and making judgment calls. Considering we have the binary choice about whether or not to eat it, that makes questions like yours a bit difficult to answer remotely.
All that said, if it was my rice, I'd make some risotto balls, bread them, fry them, and eat the ever-living-sh** out of that tasty leftover risotto. Should you do the same? Uh... Let me point you to a stackexchange answer-turned-community-wiki-entry on the topic... ;-)