Given that GW2 is a MMORPG (where one of those "M" stands for "multiplayer"), it frustrates me no end how often achievements aren't possible when playing in a party, without having to do multiple run throughs.
For example, if you are playing in a party, only the instance owner can 'earn' the achievements "Crystal Circuit Racer", "Stubborn" (and I have heard "Electrophobia" but I've not personally confirmed that one) in "The Crystal Dragon". So, if you like playing as part of a group (in my case, a group of 3 as it's me, hubby and kiddo most often), we have to do the same story 3 times for everyone to get the achievement. It's very immersion breaking, and it seems needlessly gated.
I'd love to know for sure if it's intended this way, and if so, why? From my perspective, it's punishing to those who play the game with friends, and I just don't see the logic in it. However, if there's a good reason for it, I'd be happy to hear the arguments 'for' this design decision. Though it would be really nice to have it noted in the achievement itself (i.e. something that says "If playing in a group, only the instance owner can earn this achievement") so that it's KNOWN that this is the way it's intended and people don't get frustrated by a false expectation.
On the other hand.. if this is a bug.. plox fix?