The attached and "pugetneveragain" today using the mark forum read button. Potentially related I ended up being the same user as the OP and sole poster of the thread I was reading before hitting the button.
Just wanted to mention again that this log in display issue looks to be reproducible for me by going to Tools > Quick Links > Mark Forums Read. After selecting this my next page is the incorrect login display.
I'm sure the OCN web team is on it and it'll be fixed quick enough.
Just want to add that I just reproduced this issue:
It's been almost a year and a half since the migration and, even though some things have been fixed (sorta, in some cases), this site is still buggier than a flophouse bed. If it wasn't for Enterprise riding them, nothing would have been done.
I agree with both points. It's unfortunately not surprising though. We are just one site among many now.