I noticed the new login preferences, and previously i have used openid on other sites, although i do not find remembering passwords a problem. I am aware this is a problem though, always logging in, so openid etc are basically a good idea.
I saw the facebook login system newly listed as an option for ipernity, so that we can log into both. Something made me suspicious as to why facebook should be an included option, other than for the reason that its tentacles spred far and wide (i use it, i freely admit, but i rarely login). One reason for not logging in more than i have to, is that i hear an increasing number of reports of facebook applications and the website itself tracking your web usage and history whilst logged in and after logging in, unless you delete all cookies. I'm not sure who the data is ultimately given to, or what it is used for, but it is certainly not their data to have. I have nothing to hide, but equally they have no right to track people.
please see the link here for an example of what i am talking about