See the usage note there. IMO, any situation too formal for non-standard words is also too formal to use "all right" as a single unit. (Meaning that if you use it as two separate words, "all" modifying "right", e.g. "your answers on the test were all right", that's okay.)
Back to the topic, looks like it's 4-3 in favor of Drexle now. That means we're still waiting for two people's votes.
The what mentioned above is total fiction. Please don't take it seriously!