I don’t just mean outrage or regular rage, I mean shock that someone was to the left of “legal weed and free college but only for those that operate a successful business for 3 years in a disadvantaged community” 
takes.
I think federating took them by surprise, looking back. For about a week, those smug liberals were at a loss to even fathom what Hexbears were saying, and could only chant bullshit about how we’re Russian/Chinese bots.
Sure they still do that but they’ve slightly adapted to Hexbear presence.
Socialism: Utopian and Scientific is the text that persuaded me, on a proximate level, into Marxism. It’s very accessible so long as one is alright with the rambling historical anecdotes (which I generally quite enjoyed).