It's driving me completely mad that I am supposed to remember a one login for my account and one login for the community. The logins are different formats. One uses my email address and one doesn't. They have different rules for passwords.
So, when I'm in my account and I click on Help ... it takes me to a different site altogether (though Chrome thinks it's the same domain... so keeps trying to use my account credentials) ... and the community site knows nothing about me or what I was doing or might need help with. Then the Chat advisors need to reconfirm all my details.
Start treating customers as people.