When playing support I'm usually behind the peloton to observe where best to, well, support. On attack like blaster then I like to be at the edge of the fray regularly looking back to our squishies in case they are getting overwhelmed.
As for other players, in my experience most are rushing past the optionals to FINISH FIRST SO THEY CAN SAY FIRST rather than enjoying the game and being a team player. I've played with Snarky and can confirm his said play styles.