I first read Harry Potter in Greek (I'm Greek) but I wasn't in fandom back then, so I don't consider it my first fandom language. Since I got into fandom after the fifth HP book, I've only read canon (and fic) in English. In all other fandoms too, I only read and watch things in English. (For anime, I need English subtitles.) One thing is certain, my English has improved a lot in the last five years. ;)
I didn't reply to your second question since I don't write or translate fic; I make fanart. And I'm not sure I should have checked German as a language I speak. I did learn it but I have forgotten it and can barely speak it now. I wouldn't be able to read fic in German.
no subject
I first read Harry Potter in Greek (I'm Greek) but I wasn't in fandom back then, so I don't consider it my first fandom language. Since I got into fandom after the fifth HP book, I've only read canon (and fic) in English. In all other fandoms too, I only read and watch things in English. (For anime, I need English subtitles.) One thing is certain, my English has improved a lot in the last five years. ;)
I didn't reply to your second question since I don't write or translate fic; I make fanart. And I'm not sure I should have checked German as a language I speak. I did learn it but I have forgotten it and can barely speak it now. I wouldn't be able to read fic in German.