~~ subversion aversion reversion....

All right, this is going to sound weird, but... this is part of my long-running issue with the idea of subversive literary criticism. I realize it's my issue and may have limited application, as such.

So. Is it actually possible to subvert a text (or a system, also) by trying to subvert it, or in other words, make it turn in on itself (contradict itself)? For instance, given that you're a fan who is really in the community because you want to change the accepted-- or implicit-- definition/meaning of the text, at least within your own writing. Given that you're not there to 'work with' but rather 'work against' the text while using its boundaries (which would translate to 'remaining in character' as best you could). Would it actually be possible to apply the idea of 'success' to this endeavor?
    Is there such a thing as 'success' at purposefully working against canon without attempting to create fanon? Can fanfiction hold some sort of direct dialogue with canon and act as an actual critique of it, and if so, is that even desirable to people who'd consider themselves fans or only people who in fact aren't fans, and would thus not want to read said fanfic?

My knee-jerk response seems to be 'no'. That is, I think that in order to hold such a dialogue with the original text, a fanfic writer would have to be both subversive and simultaneously(!) project their imagination to be part of the flow of canon. I believe you couldn't truly subvert without fully feeling out the shape of the source text-- understanding its biases, listening to its tones, accepting its idiosyncracies to some extent. I suppose I mean, you can't fully remake a 'parent' text on a certain level, because the readership will always be aware of the differences. You can't really subvert, can you, if it doesn't feel 'real'-- if the readers are just suspending their disbelief. If the fic doesn't read like a lost part of canon, basically.

( What I really mean is, I'm thinking of writing Narnia fic, and... )