i think for some reason the scammer asked the victim to call kraken

  Presumably because the scammer's account was on kraken?

The really odd part is how the scammer came across some of Kitboga's real info (kraken account, email, etc). Since that was the key detail that allowed Kraken to flag the victim's existing to Kitboga.

REminder that at this point Kitboga and victim had still not connected.

Scammer then gave QR maze infoline # to victim,and asked victim to try to call and untie the knot. That's really how Kitboga got involved.