Well, for my part, I don't find negative discussion of a show any less interesting than positive discussion. For OOOs, right now, I generally find its flaws the main thing about it worth discussing. When the show is good, it's good in kind of an abstract way that's not really suited to forum discussion. There's just not much to say about it on that level.
Now, I guess it could be upsetting to go to the forums and see something other than unbridled praise of a show you're watching if, I don't know, maybe you watch all of your tokusatsu by yourself? So you don't have any RL outlets for your enthusiasm. I've usually go through my WHOO YEAH ASSKICKAN reactions with my friends in meatspace long before I'm posting on HJU.
So, I may sound more negative on the whole than perhaps I mean to be. Really, I'm just not the kind of fan of self-identifies as a fan because she likes most of the things in the genre (tokusatsu). I self-identify as a fan because I have a very intense affection for the 10% of shows that work for me. The lesser stuff is interesting in its own way, but not why I'm here.