If one want to enforce a policy to include demographics in ones recruitment process, the following large demographics should also be considered:
People of color.
Immigrants.
Those of young age.
Those of old age.
While women is clearly the largest demographic in that group, each listed group is commonly put in an disadvantage when applying for work. Outreaching to each of those groups is also the only way to get a work place that includes a fair portion from each demographic, as they are used to being denied and thus do not apply for as much work as white middle aged men.
One should also want to consider people previously convicted of a crime, as that is a very large demographic in the US and is one which also have a very hard time finding jobs. Many have given up on ever finding a good job, and do not apply for higher paying jobs even if they got a higher education that would qualify them for hire.
What you're doing is called "appeal to ridicule", but I can think of worse things than reaching out to all those communities, seeking greater participation. Ex-convicts might be at a disadvantage in expertise, and so fail to get selected in blind judging. But old grey unix neckbeards would probably be really interesting, and in every Aaron Swartz thread it gets mentioned that he was meaningfully involved in the RSS process at 14.
You can try to call it an appeal to ridicule, but I too would like to see more companies and conferences trying to reach out to communities which are used to be denied and thus do not actively seek as much opportunities for the risk of failing. Reaching out is a positive thing to do to society. Its altruistic and can bring positive rewards in return. While I would not want to claim that other people must do it, the reaching out that the author did has an positive net effect on society and I assume the conference itself.
I did not include ex-convicts as a joke. Many people get locked up falsely, and even more get locked up because they enter a plea barging that they shouldn't have. Many of those has some kind of higher education, but is put in an disadvantage because of some real, or imaginary mistake in their past (like downloading a song at age 9). Assuming that those people can't do work beyond sweeping floors, or that they have nothing to contribute to a conference is discrimination without basis.
As to the young and old, I too would like to see less agism in the work place and conferences. Old grey unix neckbeards tend to only be acceptable in some places. In regard to the type of conference the article discuss, game developer conferences, I think old grey unix neckbeards and 14 year old developers are a rare sight and clearly underrepresented.
Pointing out that there is more than one form of group under discrimination is not an appeal to ridicule, and it does not lessen the acts done by the author in the article. Rather, the method used by the author is an effective method to address discrimination without causing further discrimination by the act of exclusion.
People of color.
Immigrants.
Those of young age.
Those of old age.
While women is clearly the largest demographic in that group, each listed group is commonly put in an disadvantage when applying for work. Outreaching to each of those groups is also the only way to get a work place that includes a fair portion from each demographic, as they are used to being denied and thus do not apply for as much work as white middle aged men.
One should also want to consider people previously convicted of a crime, as that is a very large demographic in the US and is one which also have a very hard time finding jobs. Many have given up on ever finding a good job, and do not apply for higher paying jobs even if they got a higher education that would qualify them for hire.