"talking about sexism or racism on Tumblr doesn’t solve anything"
really? because I am absolutely certain that I am a better, less bigoted person than I was a few years ago and that is most certainly due to the people I met and things I read on Tumblr
perhaps it doesn’t do anything for the worst of the worst but there are still plenty of people who do learn from impassioned Tumblr posts
Slurs are not oppressive because they are offensive, they are oppressive because slurs by nature of being slurs draw upon certain power dynamics to remind their target of his/her/their vulnerability in a certain relation to power and as an extension of that, to threaten violence and exploitation of that vulnerability.