I think it is that here lots of the peeps posting are couples, and you can't tell which of the couple you are talking to. I am beginning to realise that it is often just one half of the couple who posts, and after a while you begin to get the hang of which one it is, but is that always the case? I don't think so.
And names aren't helpful either! How should I have guessed that Mr Powers was a couple, or Frecklebird, or Dave Notts ? It's tricky for a newcomer.
It's not a problem; it's just different! And takes a little getting used to