When I was in high school, I played CounterStrike as a guy.
A very specific guy, in fact — a friend of a friend who'd given me his Steam login information because he didn't use his account. I didn't even realize that I was logging hours on borrowed time; around 2006, the account's owner changed his password and locked me out for good. After all, it had never really been "my" account – and as far as the Steam gameplay records were concerned, I was never even the one playing.
At the time, this type of login exchange didn't seem so strange; digital game marketplaces were relatively new, and I was used to loaning my friends physical copies of games and systems. Now that I had to create a Steam account of my own, though, I ran up against a brand new problem: did I have to game as myself?