I completely agree with you...it's ridiculous what they're doing. They'll be losing a lot of valuable possible employees to other airlines or industries.
Maybe they just have a ridiculously high turn-over rate? They seem to have a GS starting every week or so! (feel free to correct!)
Or maybe they're just trying to build s huge applicant pool and not planning on hiring?
I guess we'll never know!
And p.s - my ground school started today! Looks like it's going to be fun! (but still no word from Qantas)