I know of the policy to not post personably identifiable information (PIFI) of anyone born in the last 100 years that may be possibly living as well as the situation of cousin baiting.
There are sites like DNA.Ancestry.com, YSearch, FamilyTreeDNA, etc that provide matching services as well as they provide ancestral origins.
What is not clear is with the budding field of DNA Genealogy and how that applies in this forum and to what extend should questions regarding particular DNA traits (even origins, traits (i.e. red hair/brown eyes)) be part of this forum or does that fall under medical interpretation, but also as FTDNA points out in many of their FAQs that if post your personal DNA you are essentially posting PIFI on the open internet that while today you may not be able search for someone by it, in the future you may be able to.
So what extent in detail should these questions go? Such as for example is there a limit of number of personal markers one can post for particular tests, can they state they are a member of Halogroup A with B, C mutations.?
Trying to get the discussion going and will refine question as necessary.
Some Examples of past discussions that are related, I believe there were also a few more but lacking the DNA tag.
- Recruiting/Cousin Bating discussion that might have been more relevant if they had included more detail and not just said.. "hey looking for more participants" would this have been more of a valid discussion or if they were requesting helping define their specific Halo-group sub-group and posting a table of results would; but this is the one that got me thinking about this while also thinking about questions I have stirring in my head about DNA topics.
- Interpretation discussion and the am I from Africa discussion could have from another user had more genetic information directly included about lineage vs. just the percentages.
In many of the other discussions in this forum we like our questions to be well defined with minimal generalizations but in both of these cases generalizations were used but could have gone to the very specific detail.