Today I was not logged in, and I was on groups.drupal.org. I clicked a log in link. It took me to a page where I entered my user name and password. The page apparently tried to redirect me to drupal.org/bakery/login, but that page is 404 so I was unable to log in.
Once I was on drupal.org I just clicked log in and was able to do so, so it was just a minor annoyance, but I thought I would report it… I’m never sure what queue these reports belong in, but anyway, here it is.