I think all of the people who were too young have simply not commented, so I'll just throw this in: I was too young (I'm 24 now) - or at least if there were BB

I think all of the people who were too young have simply not commented, so I'll just throw this in: I was too young (I'm 24 now) - or at least if there were BBS's going on, no one I knew, knew about them. How late were they still in vogue?