I log in with my name and password and, even though I'm able to post with my own name, it's often other users' names which remain on display in the upper-left corner of the screen, as if I had logged into their accounts. Just to make sure it was only a problem in the display without the risks of cross-account access I clicked on the PM link beside whatever the user name was showing up on my screen hoping that I'd get to my inbox. But NO! Sometimes I'd click on the user's name and, yes, my inbox would come up, but there were several other times when I actually had access to other people's accounts!
I was testing back then when I wrote the message above whether it was my name which was appearing on the screen when I posted or someone else's. Thankfully, I can post with my own name, but the problem of other users' names showing up on the screen instead of mine, as if I had logged into their accounts, still remains.
SCARY!
Very scary. Though it set the climate for me to read some good old tale by Allan Poe at night.