rlange - 1:52 pm on May 23, 2012 (gmt 0)
This is interesting in another regard. The pipe symbol traditionally means 'OR' yet many people (myself included) have used it as a separator without thinking.
Does this mean that Google do definitely view it as only a separator?
In general typography, as far as I'm aware, the vertical bar's traditional use (or one of them, at least) is as a divider.