Part 2:
Moving onto a few specific questions:
Q: My 1st question is : Can you be more specific of what “optimization” means and will it affect the skills as we know it by any negative way ?
A: These changes will go unnoticed functionality-wise. The only changes will be positive in that skill usage will be constantly more responsive.
Q: My Second question is : Wasn’t all these problems caused because you have to broadcast every single condition/buff to everyone which is currently pushing your systems and servers/internet to its limits ?
A: This is a good question. Buffs are a large part of Guild Wars 2 and at first glance you’d definitely think that telling everyone about them would be really expensive. In reality, this is only a hit with server->client traffic, which has been significantly improved with the handful of bandwidth optimizations that have already gone out. As far as server processing, its pretty minuscule (thankfully).
Q: My 3rd question is :If you ever have a solution to this are there any plans to lift the AoE Limit for both WvW/PvE/PvP because thats why this AoE limit exist in 1st place Isn’t skill delay in big battles (WvW or PvE like Taco) a direct result of those?
A: <<< The AoE hit limits exist for more than just performance reasons. We already have a lot of places in the game where AoE limits are extremely high (WvW siege) or uncapped (monster skills). The last thing we want to do is relieve one problem only to introduce it somewhere else. 
Q: When you say “optimization”, do you mean making your engine more compatible for multi-core systems? Right now your game’s engine runs primarily on single-thread, which Intel CPU’s seem to thrive on; while at the same time your game’s engine is poorly designed for multi-thread CPU’s, which AMD is best at.
A: As I outlined above, this is mostly server changes that I’m involved with, but there are client optimizations in the works, but we don’t know when those will go out. Optimizing is extremely dangerous and requires a lot of testing. The server side changes are more controlled in the sense that we don’t have to worry about testing on different hardware configurations like with the client. Its unfortunate, but necessary to ensure that the changes don’t end up doing more harm than good.
The engine isn’t as single-threaded as you might think. It will only use as many threads as your machine can support. if you have a 4 core processor, you may only get 2 threads plus an additional 2 worker threads for processing things like animation. Though I we are definitely looking at other ways to improve other game systems to take better advantage of using multiple threads while they’re not in use.
Q: You said that when that patch note comes through, expect a very different WvW experience. should we expect to see these optimization on 15th October? or was that just writer’s freedom of speech?
A: I Apologize for any misunderstanding here. But the answer to this is no, there isn’t really anything of note coming next week. Though I did I have large hand in the skill and combat related changes coming in that release . We definitely do have a few things that’ll help, but most likely won’t be noticeable.
Q: Thank you but what about client side optimizations? We were promised some major engine/client side optimizations to improve our fps in WvW 6~ months ago, has this project been dropped because I haven’t seen anything regarding client performance since then
A: Again, like I mentioned above we are working on client changes, but they are on a much slower release cadence and have to go through a rigorous test cycle before ever being on deck for release. Patrick, the slayer of culling, is a large part of these changes that’re being cooked up.
To respond to the large response by Demosthene.2195:
The idea for having some sort of central location or “issue tracker” as you mentioned, I think there’s definitely something there. I think that central location would make sense to be on the Guild Wars 2 launcher itself, which from what I understand is going through a makeover. I think that’s definitely something for the Community team to investigate.
The rest of your post starting going off-topic. I will say that I want to make sure that people realize that we don’t always have the time to respond to every question, concern and issue that arises, even though we would love to. I constantly say how I try to be more involved and transparent with you guys, but obviously I don’t have the ability to spend time on the forums every day. We love our player-base and appreciate how passionate they are. Your feedback doesn’t go unnoticed, even if it seems like it does.
Also, thanks for the links, that’s really cool to see other developers be so open with their player-base about issues.
No one wants to ‘slap you in the face’ or make the game less fun. We love you guys, and are thrilled that people play our game!
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