You might be using the In-Game bugs forum wrong...
out of 2492 threads, only 303 haven't been sorted yet, which is about 88% rate of at least addressing.
Now I admit they might take longer then you would like, but it does seem to eventually work.
Post in there and your issue will be accepted as a bug, identified as a duplicate, or otherwise filed.
While it might not be the personal response you are looking for, filing of the report is a response.
Expecting Developers to respond to every problem is un-realistic though. They will respond to critical issues, but the Developers develop the game, they don't interact with the playerbase. We end up dealing with the Community team, and they are reliant on information and feedback that they get when communicating with the Dev team.
Expecting the community team to translate and deliver every individual issue is equally un-realistic. They have the task of sorting through the mass of threads ... many many more in the NA/EU forums than in other forums... and trying to find the critical issues and bring those to the attention of the Dev team. On top of that they have to mesh that with the feedback recieved from the 3 other language regions.
Not trying to make an excuse for them, but I realize they have a pretty daunting task when you look at what kind of feedback they have to gather.
However, you basic point I can only agree with. The part of the company that the customer runs into when they have a problem is ... painful. My own experiance was less then ideal.
I think they need a more personal touch with customers that have issues. I think they need better ticket tracking in-game. I would suggest that they take a page from some of the other MMO's out there as far as the GM services go and trouble tickets.
I don't expect to talk to a Dev when I have a problem.
An actual person would be nice. I don't think that's un reasonable, but as things are now, it's extremely difficult.