I have tried many times to register for chat. For name, I have used grannycooks, my real name, my email name. I have tried numerous new passwords, and the extremely long password steemit gave me when I first signed on. I get an error message saying account does not exist, account exists, but that is an invalid password, etc.
I literally made a chart using the various names and various passwords, to make sure I had used every combination to no avail.
I have even tried to register a new account. I give up.