Guild Wars 2

Macbook Pro 2011 with Yosemite 10.10.2 here. I bought the game when it was on sale a few weeks ago and have been playing it regularly and without issues since then. Yesterday I had the “show-up-in-dock-but-won’t-launch thing” described in this thread when I started the game, but without warning or error message. The launcher window just didn’t show up. The only thing I can remember doing differently that day was using Safari as my main browser instead of Chrome…

My first reaction was waiting, but no launcher window appeared. I also had to force quit because right-clicking “Quit” didn’t do anything. I then went through disk utility (all ok) and tried several times to repair the launcher through the terminal, which apparently didn’t do anything: the game icon popped open in the dock but that’s it. I obviously have also tried to simply restart the computer and have checked the game permissions, but that’s not it.
I now have uninstalled and deleted all GW2 files, restarted my computer and tried to reinstall the game – but still no launcher window. I don’t know what else I can try.