TheOptimizationIdiot - 5:40 pm on Apr 13, 2013 (gmt 0)
Nice find... I thought it sounded like he said use either, because there shouldn't be a ranking impact from one or the other and an a/b test to see which generates more clicks might be a good idea, then go with the one that works best.
I've personally used both with no direct ranking impact that I've noticed and I use something totally different now, just to stand out a bit more in the SERPs, because as netmeg says Freud once said: Sometimes a separator is just a separator.
Rhetorically: Interesting how we got two totally different things out of the same video isn't it?