If you weren't playing back when the only available crucible maps were Rusted Lands and First Light and you could only play control, there was only one story mission available, you could only level up to level 8, the out-of-bounds countdown timer was 10 seconds long, and that wizard came from the moon, then you're a noob. But in reality it means absolutely nothing. Go play the game and have fun and stop judging yourself, you are your own worst critic and it doesn't matter when you joined the game. (I wonder how many other people still have both the Alpha and the Beta on their consoles like I do...)