There is much truth in what you say...it behooves Bungie to make one or 2 exotic or legendaries that are very popular become VERY VERY RARE for players. If everyone really wants an icebreaker or Gjallarhorn then you're going to keep playing and play often to luck into those if you don't have them yet. Its the reasoning behind everyone having different sets of weapons that drop, but we all have certain exotics that we've had drop like 5 to 6 times while we can't get one single drop of a certain exotic we want. If Gjallarhorn is the weapon you aren't getting to drop, you can be guaranteed its going to be super rare and take forever for your account, while some people have 4 or 5 drop in a month. It was icebreaker for me, I've had 4 Gjallarhorns drop but Icebreaker is the one that after like 500 hours I've still not seen it drop. Had to buy 2 from xur. The RNG is stupid, yeah theres randomness involved but it is not random 100%. They use algorithms to determine who gets what probably based on thousands of different variables related to your character or account.