I recently created a radfem/GC tumblr account, and something interesting I noticed is that I'm getting a lot more interactions and followers for this account than my previous GC tumblr account (which I deleted a while back). And this is after not doing a whole lot besides occasionally liking/reblogging some posts. I can't say for certain, but perhaps the radfem side of Tumblr seems to be waking up, or at the very least getting more users. I don't want to get my hopes up too soon since this is very anecdotal. But if radical feminism/gender criticism activity is increasing on Tumblr of all places, that might be a good sign!