I'd be more interested in following the sellers she's bought from, but then again, their negs would be clearly visible to anyone who bothered looking.  I didn't check them all out but most of the ones that got negs looked like the kind of shonky Chinese sellers who give the stock response of "working with buyer to resolve", when they're doing no such thing.

I'd have no problems selling to this buyer, going on who she's given negs to.  I'd prefer a buyer who is honest in feedback and if I didn't receive my item from China I'd probably neg rather than contact the seller.  Some might actually fix the problem but a lot would just make false promises and try to string it out, and I've learnt not to waste my time with some sellers.  I say this based on feedback responses I've seen from quite a few Chinese sellers.  I did buy from China once - didn't actually expect to get 100 in the packet like I was supposed so wasn't surprised when there were only 95.  I should have left feedback warning others but didn't bother.  On my part, I got what I expected, even though that wasn't what was in the listing.