I never said it was confusing or overwhelming. Those are your words, not mine. Your exact quotes are "I don't think anyone is confused or overwhelmed" and "Nothing to complain about there". Yet this thread is filled with posts from players who are unhappy with the rainbow star economy, including the 7 people who agreed with my comment. Please don't misquote or misrepresent me.
Furthermore, I did not mention the GW2 economy. I actually have little to say about that, because I was able to earn everything in-game without microtransactions. MMO economies are quite different. Most of them do have coins, badges, emblems, and other currencies that can be too much to track. Typically that means having to play game modes you do not like just to keep your character's gear relevant and able to play the modes you do like. If my only options to earn rainbow stars is to play a game mode I don't like, or to spend real money, then, yes, I do have a problem with that and find it unnecessary.
(Now that i think about it, I did not like Infinity Time in GW2. However, I was able to buy all items through the Infinity packs with coins, which were available in every game mode. And I appreciate that the GW2 team did that.)
Finally, there is quite a bit of snark in your reply, particularly your last sentences: "Didn't GW2 also have 3 currencies: Coins, Stars and Rainbow Stars? Man I remember nearly quitting that game because of it's MMO-like economy. Too confusing." I don't know you, and I don't have a problem with you, so I am unsure of your motivation. However, I think we can have an intelligent debate without the pointed sarcasm.