I'm usually the receiver. I try to keep a 'light touch' on
  conversations. I generally keep them public. I'm one of the ones
  who doesn't respond much anymore to private message on any
  network. I even stopped using Kik altogether and never txt
  anymore, although I used to a LOT. Protection of my time, as
  private conversations can be addicting - which isn't a bad thing
  mind you. I had a Google Hangouts addiction a few years ago. I
  also find myself avoiding certain people, often for years,
  online and then every once in a while, let them know I care but
  can't talk private. I feel bad; some people REALLY WANT my
  company. But, I'm not bored. I want their company too, but in
  public. I haven't even opened my Skype in almost a year now. Too
  many on it. I'm not bragging mind you. I'm just not a very good
  friend. I'm an excellent acquaintance but not a good friend.