Will Jesus be sad when Yahoo shuts this place down, or will he rejoice and sing Hallelujah ?

Neither, I think.  He'll just ask us to find other forums.

Why would my pool boy care about this site?

Jesus is too busy looking for lost keys and making sure sporting teams win or lose. He's busy. Super busy. 

A person can know numerous truths about Jesus and His Ways by reciting the rosary every day with care and sincerity.  It is also good to have true devotion to His Holy Face.

Neither. Good things die without a whimper.

No, I doubt it. Jesus was penned into existence so long ago 

that the biblical authors didn't know how to give him a conscience.

After they found out that he was going to be cursing fig trees,

locating fish, rising from the dead, speaking in parables, and 

trashing a temple, they gave up on him. 

Good thing, because he probably STILL can't even read.

i think he will be sad

Probably a little of both.  

My mission will be finished in Y!A dear, and then i will be assigned elsewhere to battle the atheists, and expose their logical fallacies, dear.

Like he gives Y/A any of his time.