I strongly agree with the need for professionalism and social etiquete in all public and professional situations and I'm glad that is a running theme as of late and that sexual harrasment is being targeted. I think that the cards idea is absurd, though; awarding immature behavior a red card and rewarding 'good behavior' in any way - as opposed to simply treating adults like adults - is itself innapropriate.

I think the correct way to deal with harrasment is those who partake are either simply banned from the con or dealt with more severely depending on the conduct, and those who behave simply continue enjoying the benefits of conferencing with like-minded individuals of all genders and backgrounds.