Now, I wouldn't call "what they call you when they're being aggressive" a clear sign of "level of acceptance". In my experience, people (more women than men if there's any difference) will take the cheap shots when enraged.
I have a friend who's a bit of a drama-queen and he uses rather harsh slang-terms for people when he gets enraged. He also eats his words and apologizes afterwards when he's back to his senses, but still during the fight, he'll say the most insensitive and non-accepting things you could think of, just because he's angry.
I don't think there's any clear rule of whether or not people "should" do anything in regards to transition. Your transition is your business, mine is mine.
This applies to post-op stealth too.
Your stealth-level is your business,..
However, since you asked about stealth, I'll express what I think/feel in regards to stealth for me.
I don't intend to go "stealth". I have no intention of ignoring the facts of my past. I can never change the physical facts of my birth and the first 27 years of my life.
My history and my experiences are a part of who I am.
In denying my history and my experiences, I will deny a part of myself, and you know.. I did that for twenty or so years, trying to be "normal", and I'd rather not do it again, no matter whether it's easier or not.
Also, by denying that part of myself, I won't be able to take what I've learned through this and offer it to anyone else.. at all.
If all the transsexuals who'd been through it all were 100% stealth, then I would never have learned that there were others like me and I probably would still be deep in the closet, ashamed that I felt I wasn't what they said I was, and feeling guilty for it still.
In short... I can't do stealth because I'd feel like I was lying to myself an others and also because I'd feel like I was turning transsexualism into something to be ashamed about.
That being said, it's not like I'm gonna introduce myself as a transperson each time I meet a new person. There's a time and place for things. I just won't shy away from saying things that out me when they're right.
I'm just gonna treat it the same way as I treat my sexuality, which is about as big a deal in my life as being "right handed".