1) The Harbinger
2) All characters (Amuntet, Ammot, Set'esh, Utukku, Nekmeth, Kaasekh, Zaeboim)
3) About every 2 hours since 1.4 went live.
4) Crashes started when the 1.4 client update was applied. Has happened every ~2 hours since then. Every day. All day. I could be walking around in game, or completely afk, and the client will crash to desktop.
6) Reliability report.
There are no events listed for Star Wars* or swtor.exe.
7) Yes, these are all crashes to the desktop, not disconnects.