The paranoid among us believe that every keystroke and mouse click we ever make is recorded somewhere, by someone, for some nefarious purpose. It might not be that bad, but it's probably close.
Storage is cheap. Computers are fast. So why not archive everything? Seriously, 100 years from now somebody might really want to know what my first commit to Subversion was (other than the i5/OS port as that hardly counts now). Or what 'Paul a Cross Country Rider from Cambridge' thought about some overpriced bike bling.
