Not really. Like celebrities, the popularity of the Daedra on the forums is equivalent to how often they are mentioned in the game. Sheogorath, Azura and Hircine have all been portrayed in more detail in (what is practically) their own game or expansion.
Nocturnal is just a god with artifacts for thieves, there isn't much more to know about her and as secrecy is her essence, they'll never be unraveled which makes trying to discover them pointless. They might as well not be there, just the pretense of a secret.
I understand what your saying, but the absense of evidence, isn't the evidence of absense. I like her because you, me, or any lore buff couldn't write a book about the lady without trailing away or repeating itself. She holds secrets not mentioned, she has potentiel. I know that they are vague about her and yeah, she has thieving artifacts... woohoo... That's not my point, when I was mentioning thieves I was saying trying to say that I thought it was cool how a group of cold careless people like thieves would show respect to a cold careless god.
I may have strayed away from whatever poll this is, but regardless I like Nocturnal, even if she is never mentioned save a quest in Oblivion and little else.
Hey, off topic but did Hircine or Azura have thier own games/expansions? I'm sure they don't but I have only played TES3 & TES4 so I'm not sure.