To me, stealth means having someone who doesn't know you think that you're female in any given casual interaction; for example, the grocery store clerk or bank teller who calls you ma'am because you pass as a female and not just because he's being polite. For us older girls, there's too much of a paper trail, too much history, and too much testosterone-damage for us to truly chase the illusion of stealth. I'll be happy when I look, to most people, like a girl, and I'll be happy when I'm treated as one at home, in the workplace, and in public. Sure, I'll still be obviously trans, and most people will know that I used to be physically-male and there'll be a certain level of "wink wink yeah I know you used to be a guy but I'll play along because I'm not an ->-bleeped-<-", but hopefully I'll not be so obviously trans that it'll cause people to regularly misgender me accidentally.
Chasing the goal of being stealth also seems too time-consuming and expensive for me. I personally don't have the time or the money to spend the next five years of my life having surgery after surgery after surgery, and emptying my life savings into the pockets of surgeons of all description. I think that one can achieve 90% of the results with 10% of the money (therapy, HRT, a decent wardrobe and maybe SRS), and to get to that 100% stealth result takes the remaining 90% of the money (high-end FFS, voice surgery, hair transplants, extensive wardrobe, uprooting oneself to another part of the country and cutting all ties with the past etc.) Not a good investment for me, but I'm fully supportive and understanding of those whose priorities are different.
Besides, I think trans girls are some of the most beautiful people on the planet. I'm so proud to be one.