My Camera ...
According to the guy who runs the site, imgur strips metadata from the pictures it hosts.
How Easy Is It To Cheat In CS?
Are you a CMU student? I am. This is certainly not a university-wide policy, and I can't think of any class that I or my friends have taken that has this policy. Indeed, many classes (such as the legendarily difficult 15-251, Great Theoretical Ideas In Computer Science) practically require you to work in groups, and woe betide anyone who goes it alone.
Do you just take completely different classes than me or anyone here that I know? Or are you delusional? Or are you just talking out of your ass?
Facebook Blocks Users From Mentioning BugMeNot.com
I know the story poster in person - we're both at CMU. The story is actually an attempt to send unique IP addresses to a certain site for an academic assignment. The details of the assignment are here. (Warning, PDF.)