#dearcisfeminism is a Twitter hashtag created by Wesley Bailey, a violent porn sick man in the Philadelphia, Pennsylvania area who thinks he’s a woman. He apparently created the tag because it upsets him that Cathy Brennan, a lesbian feminist, knows he is male. He continually threatens to “collect” Brennan for knowing this. These types of hashtags are created for the sole purpose of silencing Women and preventing them from critiquing gender identity as a concept. Similar hashtags have been used by other, equally violent, men, as described here and here.