I does really disturb me that no floating wreckage has been found. I find that really strange and I don't know how to explain that. Maybe somebody tried to land the aircraft on the ocean surface and the aircraft sank relatively intact. Or maybe there would be a lot less floating wreckage if the aircraft was dived at very high speed nose first into the ocean. It just seems to me that there should be at least some floating wreckage.
There is no reason to believe that this is some sort of a conspiracy where they are just trying to make it seem this aircraft is at the bottom of the Indian Ocean. Why would countries like Australia, the United States, Britain, and others do that? No way I am going to believe that somebody just threw some blackboxes into the ocean so that signals would be detected.
If they did do something like that everybody would be discredited if it was suddenly discovered the airliner was in a hanger somewhere.
On the other hand we are putting a lot of reliance on some satellite data that had to be interpreted. But in the end there are those signals from the blackbox. And unless somebody threw a blackbox into the ocean those signals are extremely strong evidence. Conspiracy theories or no conspiracy theories.