Coming out as genderfluid on this forum

[Der/die AtheistIn]

Hi,
I discovered for some time now that I'm genderfluid, I switch between male and female.
I prefer female pronouns when identifying as female and male ones otherwise. However, I'm not asking any of you to switch pronouns when talking to me. It's alright for me if you stick to just female, just male or to neuter pronouns. 
And if you disagree that nonbinary identities exist, I won't feel offended, as long as you don't try to insult me.
I didn't come out as genderfluid in real life (yet).

Well, if you're not strictly female, then is calling yourself "Die Atheistin" and having a Darwin Fish with a hair bow as an avatar still appropriate/accurate? To be fair, I'm not sure what the gender-neutral German form of Atheist is.

I don't know a lot about gender fluidity, but what I know strongly suggests they'd find Ouran High School Host Club up their alley:

Actually, I'm, switching only between male and female identities, I never feel like I'm neither or both at the same time. There is a male version of atheist in german (der Atheist), but it would be tirening to keep on switching my username depending on my mood. I could write them both at the same time, like der/die AtheistIn and I think this is what I'm gonna do. And about the bow, I sometimes feel like wearing bows and other generally cute things even when identifying as a boy. I always feel body disphoria on my boy days, sometimes I feel like wearing traditional masculine clothing sometimes like dressing like a dandy. On my girl days I usually like to dress feminine, but sometimes tomboyish without any disphoria whatsoever. I'm thinking about changing my avatar eitherway, maybe with something that represents me more on a usual basis.
And I like Ouran! I read a theory that Haruhi might be genderfluid and I do believe it might be true.