I'll think of a good thing to put in this short bio some other day.
"...as for the Why: beyond the obvious financial motivation, it's exceedingly simple... because I can."
Dark Sparkle is a white unicorn, a sister of Twilight Sparkle who first appeared in Zonoya717's Fan-fiction Dark Sparkle Returns in chapter 1. In this chapter she remembered the events from her past.
You know you're chiller and you're flipper and you're hipper than that. So face your demon, stop screamin', and pummel it flat! | Soon™