My previous message disappeared. And now I'm logged into YourValentine's account with total access to it: I can see her Pms, I see "Delete User"/"Delete Post" under each poster's name, which for sure isn't among my powers on the website. Hehehe. ;-))
Serious, please, take care of it, dear Richard. Luckly it's been happening to me and I can't do harm to a bug. But ill-intentioned folks could use it to break into the private sections of other users' accounts.
There are still issues of cross-account access. Please, this is a bit more serious than the average bugs, my dear.
Thanks for the attention,