Hello there and welcome to the board 
As for anime I watch it as well the story is pretty good (actully I love this anime), Also it show somewhat reality of the society negativity toward otaku. 
And I am a bit if closet otaku so obviously can relate to the story.   
moving on to what I as a guy would thinks if I have female eroge otaku friend 
"oh you play eroge? yech me too! so have you play  yet?" 
that my respond so I would talk to them like comerade in armed sharing the same interest is nice dont you think?   
Beside resently I just found out during a phone call with my friend that she really into Otome game 
she wanted to learn japanese and she mention that she also learn Jp from games which I said "hmm I wonder what kind of game is that?" 
Well I do learn a things or two from eroge game so it natural that "a theif could indentify a theif" 
that why I knew lol, she a bit freak out that how I figure out so fast and she didnt want anyone to knew it   
In the end we just geting a bit closer due to that, so that not a problem if you are girl who enjoy eroge or VN in general   
PS. whoa this is a long post I hope you dont mind my irl story