As a very active GW2 player, avid partaker in the online forums and other GW2 communities I must say I'm very disappointed with ANet in many ways since the game has launched.
This criticism isn't directed at the product, Guild Wars 2 is a great game by any standard, but more at the company policies, QA etc.
1. Patches making the game buggier rather than better - It seems for every patch ANet has employed over the past few weeks they managed to break a handful of other things in the process. Hell I remember a week where almost 1/3rd of all DE in certain areas were bugged. I recall patches that broke Skill-Challenges that were working previously. Arah has been virtually locked the entire last week due to some bug. The Borderlands Jumping Puzzles are still broken, by something they patched 2 weeks ago and the list goes on.
I mean I've literally had patches that broke more things for me than they fixed (often fixing stuff I never even noticed). It seems as if ANet's QA department is too small or their patches aren't reviewed properly. I hope this improves over time, maybe if we get a PTR, but what I've seen until now is pretty sad.
2. Almost complete lack of communications about core issues with the game-play.
I understand and appreciate the stance of "let's lean back and watch the meta-game evolve" when ot comes to PvP class-balance issues. It can be frustrating at times but it makes sense given how young the game is and how builds and tactics are still evolving.
But there are other things that really need to be addressed, or at least commented on. Free server transfers for example are seriously impairing WvW. It encourages sabotage, guild-hopping and various other undesirable activities. It also goes against building server communities if people start to fluctuate to the winning servers. While we all appreciated the free transfers, they need to end asap. They are hurting the game.
Downed state in PvP is another hot-topic and I would appreciate to at least hear the developers thoughts on it. It has some seriously game-breaking implications in WvW, really limiting what undermanned players can achieve against larger groups. It works nicely in PvE but really hurts the game in PvP.
Night-capping was the only issue I recall that did provoke an official response, one that didn't address a single concern voiced by the community and ignored any of the reasonable suggestion to mitigate the issue.
I'd also like to hear what their take is on, despite wanting to achieve the opposite, players are funneled into Orr at level 80 simply because it's the most lucrative and efficient location to grind. It goes against EVERYTHING GW2 set out to achieve and really doesn't make sense design wise.
It's time like these when I really miss somebody like Ghostcrawler who, despite times of absence during Catalcysm, always took the time to explain certain design paradigms and goals. ANet needs a Ghostcrawler.