Do You Have a Shared Facebook Page?

I see a few of my friends on Facebook who have a shared page.  Like it has both of their names on it.  Why is that?  I know where my mind goes immediately... I think that one or both of you have some sort of trust issue.  Like it doesn't cost anything to have a separate page.  Unless you have your page locked down, you don't have to hide anything.  The only thing hidden would be a private message.  But otherwise it's fairly public.

I see people people posting different subject matter when they have a shared page and generally I can tell which of them did the posting, but I still wonder why... and it's horrible that my mind goes in that direction.  But it's just that... you could post the cure for cancer and I would still think.. why a shared page?  What's the issue?

Admittedly, it's probably because one of the two just doesn't really care, and it's an easy way to get in touch with both... but I still think hmmmmmm.