Security flaw in delicious.

   I have a delicious account, i had kept auto login feature for it on my office computer.But when i tried to access my delicious account from my home desktop,then i realized that i had forgotten my password.So i thought of changing its password by going to link, i forgot my password, which will send the mail to my email account which i had registered while signing up.
   Its has been long time since i created my delicious account , the email id that i gave was too older one and i use it no more , hence i don't remember the password for it also!!!.Then i got perplexed how to change my password.just browsing through the delicious site, i went to settings of my account(from office computer where it is logged in already).I got shocked when i saw, i can change the email id which i used for registration without prompting for old password.I just changed that email id to my currently using email id.After that i went to forgot password link and gave my account id, which sent a mail to my current id from there i changed mypassword!!!
   It means if we login to our delicious account and left without logging off , then some one can easily change our password.!!!without knowing our old password,which can done by just changing the registered id.