>>/896/
> I think my brain is getting fucked up
It'll only get worse as you spend more time in the fandom, I assure you. And not in a way amenable to yourself or anyone else. Threads are every Saturday on 4chan's /co/.
> Who is your favorite girl and why?
I don't have one, though I'm partial to Wendy, Tilly and the canon nandroids.
> Do you think AI will progress to the point where a virtual "person" would be possible?
Do I think so? Sure. Will we here live to see it? Doubtful. Will humanity survive to live with it? Also doubtful, given our general behavior.
> Are there any other secret Nandroid discussion places?
There's circles on twitter, instagram, funnyjunk, etcetera and our own booru (nandroid.booru.org). If you mean secret-secret, there's a discord (linked on the booru), but it's fallen into a state of unmoderated disrepair since most of the original or core users/creators left to make their own, smaller and more well managed discords for themselves.