Laura Miller writes in the New Yorker about litchat and legacy:
In fact, litchat has assumed an ever-greater role in criticism because so much of what once happened privately and fleetingly is now public and preserved. Social-media platforms like Facebook and Twitter are the main sites where this litchat happens today, and conversations on both spill over into digital and print journalism, which takes remarks made in interviews that generate Twitter responses and then amplifies them, spawning even more Twitter responses. All this, the positive and the negative, in turn, becomes part of a writer’s media.