Because I'm considering Orthodoxy, so in that context, the opinion of Orthodox of my status matters.
But that's just it - why?
You're considering Orthodoxy. Why does what Orthodoxy say about what you used to do (which actually amounts to not much. That is, Orthodoxy says very little to nothing about other communions) matter? You're not taking alternative points of view on their own merit, but judging them by your old perspective, which, as I said, is like judging whether or not my old family was really a family at all by asking an entirely different family what its perspective is on my family. Since the only reason I would be doing that is to question whether my old family is really a family, or my true family, why does it matter if they say the old one wasn't? (and Orthodoxy doesn't even go that far, it avoids the question entirely, really)
Just so I'm clear: To me, your situation is like the following.
Me: "I wonder if my family is the family started by my grandfather? I think the Johnsons over there might be his true family. I'll ask them how they judge that they're Grandpa's family." I go ask.
Their Response: "We believe that this is Grandpa's family, but you're welcome to join us. All you have to do is eat some of his famous farmhouse chile, he passed the recipe on to us."
Me: "But do you believe I was really a member of the family before? Before I join your family, I need to make sure that you think my family was the true family too."
Them: "Why are you looking at joining our family if you believe that was the true family? If you're going to join our family, why do you care if we disagree with your old family? Why do you care how much we disagree?"
Me: "But I want you to confirm what you think about my old family."
Them: "Why does it matter what we think about your old family? If you're looking for a new one, why are you so determined that the new one must confirm that the old one was 'valid'?
And round and round we go. Your stance only makes sense, to me, if you want to have your cake and eat it to. Why are you looking for a new family that confirms your old family? It's an entirely new family that can only judge itself, and if you're looking at a new one, don't you yourself find something lacking in your old one? What's wrong with us agreeing with you?