Still lots of discussion going on; this is just an attempt to highlight a few different aspects.
novapsyche describes why she took part and how she reacted to the original post.
synecdochic on "sex-positive", "getting-laid-positive," performative sexuality, and bystander consent.
delux_vivens on overlooked racial aspects of the "project" and subsequent discussions.
vito_excalibur proposes the Open Source Women Back Each Other Up Program. One place for buttons and T-shirts is CafePress. Practical tips from kathryn_ironic in comments and shaysdays in a separate post.
And on a lighter note, nineveh_uk imagines the whole idea as a lost flashback from Strong Poison.