Haha, I love how all the essential story bits are hidden away in guidebooks somewhere, like it's forbidden knowledge. So Richter gave up the Vampire Killer because he felt ashamed of what happend to him? I never imagined it would be such a simple explanation, but I like it.
Sometimes the simplest explanations are the best. I never bought that the Belmont's bloodline was tainted, because Richter was still the VK's memory in POR.
I assumed at the time it was the fear that Dracula/ his minion could control a Belmont, and the VK; the power to hunt the night, accordingly. So the Belmonts went into hiding, giving the VK to the Morris family.
What is he talking about here? You don't fight other vampire hunters in Bloodlines or Rondo. Also, Alucard is Dracula in Bloodlines? That's pretty bizarre.
It wouldn't make Dracula in Bloodlines Alucard, it would make Dracula in Bram Stoker's Dracula, Alucard. He did say "when Quincey killed Dracula".
Edit: as above, Alucard kills Dracula in the Stoker novel, not Quincy. This could explain how Quincy lived on and had children.
Unless we still entertain that John Morris and Eric Lecarde witnessed the battle with Dracula and the death of Quincey.