Not here for the longlong ago, BUT, essentially, you need somebody to be the "Huh what?" position, so that you can have exposition now an dthen for thing sthat the characters should know but the players don't. The highest-paid Urban Brawler that gets on all the advertising and is dating that supermodel Elf? Yeah, *everybody* knows who he is, but if you just say "Jefferey Biggens" in the story and don't flush it out, it falls flat. So somebody gets to say "Jeffery Biggens, who's that?" and then you drop detail.
Unfortunately, there are two problems. First, Jackpoint is supposed to be an elite bunch of people hand-picked by Fastjack to gather at his private Matrix location and exchange data, advice, and so on. Why the Hell did he invite this no-nothing 16 year old girl who knows shit about shit? The more realistic writers had to do some real tooth-gnashing over this. Lord knows the community as a whole has as well.

Second, and a point which underlines the first, is that she's always been asking and asking and asking, displaying ignorance, which stresses her not belonging even more. This is somewhere between Flanderization, where a character is reduced to a catchphrase and a cameo, and Worf Syndrome, where one person gets to be used as a punching bag so often that they lose all legitimacy.
There were discussions about how to flesh her out, how to show that she belongs, and so on, and a few ideas kicked around, but Bull stepped up and hit a home run for us, so, now, not an issue; lots of people are excited about her, now, and looking forward to where she winds up.
What kinds of info out there otherwise is that she's a teenaged (But has been around for a few years now, so isn't perma-16) Elf girl with red hair and a NeoNet corporate citizen with corp parents. She dabbles in Shadowrunning, has a team, but has recently stepped up her game and got under Kane's wing. She's also a DAMN good hacker and, like Slamm-o, has the older runners realizing that they have to pass the torch down, or at least pass on their collected wisdom.
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I think that about covers it? But if you have more questions, fire away.