Why does Snape wants DADA job if it cursed? LONG

[pippin_999]

No: HPFGUIDX 148919

> Jen: I see where our difference is now, so I'm cutting down to the 
> core idea here. To me if the DADA curse acts to bring out the worst 
> secret a person is hiding, then Snape was outed as a murderer and a 
> DE, wasn't he? If that's all it does, then like Lupin showing his 
> werewolf side and Crouch his DE side and Lockhart his fraudulent side, 
> Snape exposed his secret on the tower. If he was exposed as a double 
> agent up there, the rest of the Order missed it and presumably 
> Voldemort as well. 

Pippin:
Hmm...except being a secret servant of Dumbledore isn't a bad
secret, so the curse wouldn't expose it. But on the whole I 
agree with Jen. The curse makes you unlucky, which exposes 
your weaknesses, which in turn causes you to lose your job.

I think Snape applied for the job every year because Voldemort
ordered him to -- since Voldemort never said, "You can stop
applying for the job if I get vaporized,"  Snape continued to ask
for it. It would be a cheap way of demonstrating his loyalty to 
Voldemort -- as long as Dumbledore didn't give it to him. 

Of course when he finally got it, it became rather expensive. I
think the greatest weakness exposed was the feeling, whatever it
was, that made him look as if he was in as much pain as the dog 
in the burning house.

Quitting the DE's is signing your own death warrant, so when 
Snape defected (assuming he really did) he was suicidal in a sense --
he had accepted that it would be better to die than to go on 
serving Voldemort. His remorse over James might have been so
deep that he wanted to die -- but I think Dumbledore convinced 
him that that was because of the damage he'd done to himself
by harming someone to whom he was so indebted, and that
when Snape was healed he wouldn't feel that way anymore.

It could be this subconscious death wish that made Snape
risk taking the vow.

Pippin