I'm not getting into the discussion that is taking place, not here for that. But to answer the question, I don't use significators, I have never liked than and they didn't seem to make a difference using them or not, tried it a couple of times but I didn't like it. I agree with Starcana, they will show up in the reading by themselves. I also see using them as taking a card out of the deck in which you see the questioner in your eyes, but it may not be totally correct and they could show up as different card, and another person who is significant to the reading could be the card you picked as the significator and not be able to show up because you have taken the card out of the deck.