Not Tumblr, but I think it deserves to be mentioned here.
I've found a ridiculously stupid Russian radfem group on VK that spends most of its time the (Russian) radfem way: cheering on murder and rape of men, hating gays and trannies, believing they are biologically and morally superior to everyone else and just being a living incarnation of every single negative stereotype about feminists.
What matters most is that they have an incredible art album. Every single psychiatrist would have a field day with it:
"КНН" is the abbreviation of the group's Russian name.
"He provoked me"
"The fate of a rapist"
"How to communicate with guys properly"
The majority of these incredibly positive people are in their 20s-30s.
Other than the tumblr nose, the draftsmanship shows promise, although the artist is more concerned with the clothes than the people in them. Still, that fucking tumblr nose ruins everything. God I hate that shit. What is wrong with people's brains that infects them to make them think that utter garbage looks good?