I would expect it to matter on HN. Facts matter. Increasingly people are just saying entirely wrong, easily disproven things and because it sounds right to whatever the bias of the crowd is, it's accepted.

However I doubt that angle has any relevance to their sales decline, beyond the most fringe element. As others have rightly said, the majority of people who have an interest in the information that 23andme offers have already done it or a competitor, having probably picked it up over one of the multiple Prime Days, etc. They do have revisions of their chip and improved information, but thus far they haven't marketed that for repurchases.