Me neither, but we don't know what happened, so we HAVE to speculate.
Anyways to answer your questions:
So.... where is it now?
That is THE question. Methinks its in the drink. If not, it already was fueled and took off with Muslim terrorist sympathizers.
Did they see/hear it take off again?
Maldives archepeligo is massive. It is very doubtful the same witnesses saw it took off again.
How did it get refueled?
Pre-planned sympathizers?
Were passengers offloaded? (if youre going to steal a plane, logically youd ditch the passengers).
Not if they were going to kill them via asphyxiation at high altitude.
If its terrorism.... how come no one has claimed responsibility, demanded ransom, etc etc.?
Because they need the plane for their next attack? I dunno. I just don't think the terrorists we are fighting are this sophisticated/lucky. I'm thinking mid-air emergency, crew dead, autopilot ran until fuel out. Im not buying it.
Still, if they asphyxiated the bodies... you gotta get rid of them. Would YOU want to fly around with 230 rotting corpses? So, if they landed, logically they offloaded the bodies. Where are they?
If you read the article the Maldivians that reported the aircraft where on the atol of Kuda Huvadhoo. A few hundred miles away from any airstrip.