It does to check the Support blog and others occasionally; this was interesting...
http://fubar.com/blog/2111/632295
Photos will now be re-rateable about once a week (not just a one-time event) to encourage people to re-visit their friends' galleries more often.
What's going on now with people being able to see everyone's commenting and mumm behavior with rather more... transparency than previously, couldn't tell you if that's intentional or a coding bug, though...
