Currently it seems like anet is A/B testing their first change for the new player expierence, which looks like a massive XP boost, so massive that you are level 4 after leaving the tutorial zone. *
That itself might be not a problem, but what is a a problem is that when a group of friends start playing together, Person A might have the boost and Person B might not, which in a group of friends can cause people to be confused and at worst angry, there have been already at least 5 Posts on the subreddit about people like that.
I'm not sure how anet could fix that, but really something needs to be done..for example when you play in a group that either both get the experience or no one gets them to that people can decide if they want to level together.
I also know anet doesn't want to tell us what they are testing and probably doesn't want players to know that they are testing so that their data is not wrong, but you could at least tell us how long you gonna test it so that we can tell people "don't worry its over in 2 weeks"