Board Thread:Speculation House/@comment-26822171-20151216132821/@comment-26397825-20160104033623

Just because you are optimistic does not mean you don't feel emotional turmoil ever. She's had plenty of reason to be emotionally upset to the degree that would activate any Maiden powers she had, and she never has. This would include her mother's death and the trip Yang took which almost got both of them killed via beowolf, which Ruby was awake and aware of what was happening when Qrow leapt in to save them, as evidenced in the manga which is considered canon. The logical conclusion is therefore that Ruby does not have Maiden powers.

Also, I'm fairly certain her fear in front of the Deathstalker during Initiation when she covered her head and thought she was going to die would prompt some sort of response from the Maiden powers, and this whole situation with Yang now would probably result in some activation as well.