I can't login with Github. When I try, it logs me into someone else's account. I didn't realize it was logging me into someone else's account, so I deleted the account once logged in, and then tried again. I was again logged into someone else's account (a different user this time).

Out of curiosity, I had to try deleting this user account as well (sorry!), and when I logged back in again with Github, I was signed in as a different user again. I assume these were all real accounts because they had different user profile pics and such.

It had been a few weeks since I had logged in. Pre-switching away from hipchat, if that helps.