> ... Make sure to discuss your Genetic Information ... before you act upon the Genetic Information
The problems are not about what someone might do with their "Genetic Information", but with the accuracy of the "Genetic Information" in the first place. The false positives/false negatives mentioned in the FDA's warning letter[1] are not referring to misdiagnoses based on the 23AndMe's results, but to misidentification of genes in those results (as the letter describes it, "false genotype results")
In a nutshell: 23AndMe claim that the genetic variants in their results are (to some degree of accuracy) genetic variants that you actually have; the FDA says that 23AndMe have not provided enough evidence for these claims.
[1] http://www.fda.gov/ICECI/EnforcementActions/WarningLetters/2...