I had two comments posted. The first was the automatic comment when I marked the question as a duplicate. I expected that to disappear should the question be voted a duplicate (which it was).
But I also had a second comment explaining why I had voted that way and including a link to a second useful question. That one's gone, too.
Was that second question automatically removed like the first? That is to say, does SE operate such that all comments (from the person who causes the first automatic "this could be a duplicate of..." comment) are removed? or was the comment removed manually by someone?
I have no feelings pro or con over the issue, I simply want to better understand how SE operates.