I just want to encourage people coming in from Tumblr to try to be chill and avoid being in "prickly defensive and assuming the worst of people who don't declare the right faction allegiances" mode on here. Fight your enemies, not your allies.
I haven't seen anyone looking for a fight, but some intro posts give me the impression of expecting to need to be ready for one, and I think we've found here over the last couple of years that social media actually doesn't have to be like that.