If one looks for the most elegant flight path that would seem poetic to the pilot that would create a mystery or the pilot was seeking for revenge for something? Also how many mystery writers are out there that can come up with a plot like this.
He probably flew his plane to the undersea mountain range to bury the plane.
Involving the general public in the search for the Malaysia Airlines Flight 370 is a fantastic idea. Giving people the power to search and help in every way possible is definitely in the best interest of the families and victims of the accident. Expanding the number of searchers will help find the wreckage faster.
Yes, it is possible to think that the average Internet user can help find the lost Malaysia flight, because there are people who have the time to spend and want to help. So far, the experts have not even been able to find the flight, so we might as well allow private people who want to contribute the chance to help.
The ocean is a massive place and as the search drags on, it is obvious that the authorities have absolutely no clue where the plane went down. Enlisting the help of Internet users to search through satellite footage will help to sort through the enormous amount of data and possibly locate the wreckage. It does however add many more potential false alarms to the search operations though.
Theoretically crowd sourcing certainly can help search satellite photos and images for debris. Platforms like mTurk, certainly make this a possibility. In this case however, it is not feasible. News reports indicate that imaging doesn't cover many areas of the ocean and the photographs and imaging simply doesn't exist to check.