Remember this was said by the narration in the Between the Line of NT 5
"If one looked at the flood of different theories from a conspiracy theory viewpoint, it could be seen in a different way.
It was possible someone had intentionally released all that false information to hide the truth.
Or it was possible someone had randomly released that flood of information so it would be gathered as rumors, the wrong answers would be weeded out, and society would naturally approach the optimized answer. In other words, it was possible someone had been trying to automatically calculate out her identity."
What if it was the Rosicrucian Order trying to find out what Fraulein identity was and if Anna was the Fraulein from the Between the Line 1 of NT 5. They would be trying to learn what she is when she first show up.
There also this from the Afterword of NT 6:
"In a few places, characters that have few lines and don’t seem to have many appearances at first are surprisingly deeply involved with certain story threads. If you have time, why don’t you try to search those out"
This could be taken in a way that the Fraulein from Between the Line 1 being a different being from the Fraulein of NT 5- NT 6 because that Fraulein only had a few lines and if it was Anna, Kamachi was pointing Toward this in the Afterword.