Fascinating - thank you for filling me in to the missing part I
  can't see. It's interesting; I didn't know that blocking someone
  causes their OWN message to disappear from view like that. Quite
  magical.

  Never blocked anybody, never been blocked. Jax was the first and
  only to have done so. Years in discussion groups, hotly debating
  all sorts of topics - called plenty of names of course - but the
  first block - I feel special smile emoticon

  And same as you; I don't always read rules, but when someone
  calls me on them and I find out I've been breaking them, I
  comply. After all, it's not my group. I'm just a guest here.