Great points raised by some folks here. But they are not the point of this thread.

CGC has notified the community that they suspect someone who submitted books to them did so after trimming the books. They've acknowledged that some of the books trimmed and submitted received blue labels.

The point of this thread was to point out in the insufficiency and of CGC's response so far. Questions remain as to:
1) Why does CGC refuse to release a list of books that it believes are suspect (by virtue of being submitted by this person)?
2) Why does CGC not "proactively" contact registry set owners of the suspected books?
3) Why did CGC limits its offer of reviewing books to the time period noted?
4) Do they have any reason to believe that this person did not a) submit books through other people or b) that books sold by this person are not also suspect of having been trimmed?

This is not a thread to discuss whether CGC can detect all resto work or whether there is a better alternative or whether more education is needed for collectors. Discussing it here is OT and contributes to the idea that CGC can just ignore the reasonable questions posed to them.