Miranda was a nickname my university housemates used to call me (it's a play on my surname) in that way men often use female names as an insult with their friends, so just seemed apt to reclaim it from its intended derogatory usage and utilise it for something positive
My only worry is people thinking I took it from Sex & the City!
I've never seen Sex and the City, but your name made me think of either one of Uranus's moons, or the name of a town in Final Fantasy 3 (a video game for the Super Nintendo, if anyone here has played that.)
The crossdressing community is one that needs to stick together and continue to be there for each other for whatever one needs. We are always trying to improve the forum to better serve the crossdresser in all of us.