Ethan posted this in a forum considered by many of its users as one of the few places on the internet where you can get honest feedback to photographic work. He posted the link with the ironic text "[o]h man, this app is going to streamline my life." flojuggler is a website that allows you to track the menstrual cycles of up to ten women at time of posting. The creator has an FAQ with some creative applications for this website. Anyhow, why Ethan's comment is ironic is because other than his mom, I doubt there are other women in his life to track.
On second thought, Ethan probably shouldn't be tracking his mom's menstrual cycles anyway but thanks for the link!