i tried explaining the problem to the OSHWA group: they didn't get it. the problem with their Certification Programme is that there's nothing in their document which covers liability if a design causes injury or death (deliberate or accidental). the OSHWA group is therefore setting themselves up for a class action lawsuit where some incompetent person designs something extremely badly, slaps an OSHWA logo on it, then a chinese company goes and copies it (logo included... without bothering to find out what the logo's actually for), somebody dies in an electrical fire and the family gets an aggressive lawyer to sue and blame (rightly in this case) the people they deem to have been responsible.
what's particularly troublesome is that the OSHWA's Programme is "self-certifying" Certification Programmes *NEED* to actually have clout behind them, with money put aside to be able to take legal action against people who bring the Certificate into disrepute (using Trademark Law - not patents, not copyright), and there needs to be clauses and phrases that define and assign responsibility and liability. the OSHWA document has been written by well-meaning and unfortunately very naive people who cannot comprehend how much of a risk they are taking, who have not thought things through properly. they haven't taken legal advice, and they have no idea of the distinction between "Libre" and "Open".
what is useful however is that their mailing list is a focus for like-minded people to congregate and communicate.