But Twitter isn't a private space to interact with your "social circle"; it's the public square, where political debates take place in full view of the world. T

But Twitter isn't a private space to interact with your "social circle"; it's the public square, where political debates take place in full view of the world. The best real life analogue I can think of to replying with a dissenting view on Twitter is protesting outside a political speaker's talk, which is something we very much allow.