I've been using Bloodied Porcelain for years now... it's become part of my online persona.
To explain the background on it...
Originally the name was adopted as a bit of a "tribute" to my favorite RP character of all time, who first made her appearance in a Vampire: the Masquerade table top when I was oh... about 12 or 13. I played a malkavian with regressive personality disorder and who, despite being in her late teens when she was turned, dresses and behaves like a child, even going so far as to call her Sire "Daddy". She was malnourished as a human and so her stature was much smaller than most girls would have been by her age, but vampirism suited her and brought out her best physical qualities (skin tone, intense stare, red hair, etc). When I played her both in table top and later in LARP sessions, she was described by others as being a "walking, talking, blood splattered china doll". It was a natural progression for the name to be born from that.
But the name is a double edged sword, as it also has some real life meaning as well:
I have, for years, apparently been one of those girls who gets described as "doll like" for one reason or another. In the BDSM community I used to frequent, I was described as being "everyone's favorite porcelain doll" because I have a very very fair complexion and when I'm patient enough to allow myself to be dressed up, have my hair done, etc I pull off the look very well. Add to that the fact that like so many, I'm "broken" in one way or another, and the fact that I'm a bit of a masochist, that's where the bloodied part came from. Put them together, and it's supposed to embody the "broken doll" sentiment.