I can think of a couple users who apparently couldn't get back into their accounts because of email addresses that no longer worked and they forgot their password or some other similar snafu.
I don't really have any ideas for you, but for other users that might come by here down the road who forgot their password, there is a password reset link (the email used to set up the account is needed)
imgflip.com/forgot
For users who are logged in, there is a change password link:
imgflip.com/password