Rogue leveling, at least at the period of stupidity, aka 2005-2007 was:
Ambush-->Lucky crit? Yeah! (Talent helped a lot but not everyone had it obviously, or the hit % talents)-->Sinister it to 5, Eviscerate, did 2 of those crit? Yeah you won quickly.
Did you miss/didnt crit, something ?Facetank like moron cause bad.
Also make sure to panic and press space bar while jumping randomly to pull 1 more, get dazed and crit from the back.
So, basically the fact you played all these years and i am guessing dotting and running, is the knowledge of all these years that "Oh its possible".
What do you think people did when they saw "Deals 500 damage instantly", "Deal 520 damage over 15 seconds" while leveling?