This is what I have noticed
Several sudden drops. I can be running towards something in a public area and then suddenly the game crashes. Gone.
Several times now the entire update have completely reinstalled. I'm not talking about during patching. But outside patching. Twice. Starting game, suddenly it's installing despite I had already installed whatever patch or update that were previously released.
Like now. I change toon - the game hangs. Bad. So I get out, try to log in again. Still hung. I try a different account, fine. Go back to old - hung saying 'cleaning up old connection'. I follow instructions and reload the computer. And now it's reinstalling the entire update again.
I don't know what you guys did, but it's not the only thing I've seen that's disturbing. Like in my new win 8 laptop - game worked fine before the update and now it can crash when I log out, to get hung completely in blacks screen and when I minimize the entire game everything has a hue of blue. It's like the colors got screwed up. And I have the latest updated drivers for all hardware. it's Update 21.
It's one thing to have bugs galore (like the bug where the bags stops collecting things from your inventory when you click gather - it works and then it stops). But when this is affecting my computer, from crashing to hanging completely I wonder if it's not safer for me to stop playing for a few months until you get your stuff together.