This might not last long, but I'm really curious.
I know that a few GCers, for example
wptw, are ritual researchers and know a lot of info about a lot of GLOs.
However, have you ever had someone from another GLO tell you secret information? Perhaps even without your asking them to do so? If so, what is your relationship to that person?
I know basically all of the info for one fraternity. My good guy friend told me one time--this chapter lost their charter on my campus. I also accidentally found some of their initiation stuff one time in their house when I was looking for my lost camera (before they got kicked off, obviously).

I also know a few things here and there about other sororities on campus due to drunk members spilling details.
Not that I consider the behavior above particularly appropriate--at no time did I solicit information from anyone. But, for example, I've had friends tell me their parents told them info about their GLOs from college....