Microaggressions is an archive of bigoted things people have said and done, ranging from things that sound fairly innocuous to most people to coffee-spitting horrible. Basically, if the type of thing archived at FSTDT could be summarized as the guy who tells you you're going to Hell for being gay or belonging to a different religion, Microaggressions could be summarized as the person who gives you dirty looks and slips Chick Tracts into your bag when you're not looking. It sounds harmless enough, but a lifetime will take its toll.