Anime fan yes, otaku not fucking likely.
Well I'm an old married man with a teenage son, I hardly meet the description of otaku.
Fav series, impossible to say. Not even easy if I divide into genres.
Got involved through watching Ranma. First actual genuine purchase was Air TV. Greatest emotional impact came from watching Clannad and Afterstory.
Yes I WOULD like to delete all the pointless nudity. No not because I don't like nude cute girls, consider it for the same reason I like expensive chocolate. I deserve better anime.
A brief bit of maybe nudity in a hot springs makes sense (I tend to bathe naked). Just plain constant nudity though, it gives our hobby a bad name. And for what, so we can please dumb schmuck virgin otakus? Let them jack off to real porn like the rest of us.
And as I am 48, I am in no danger of suddenly turning 21 and realizing 'this crap is for kids'. I will likely be still enjoying anime long after it bores you.