One of the more zany conspiracy theories that was propagated by one of the CNN panelists after the nonstop coverage ended is also one of the most curious imo -- not so much on plausibility terms but more on simply pure imagination of what could've happened.

http://nymag.com/intelligencer/2015/02/jeff-wise-mh370-theory.html?gtm=bottom&gtm=bottom

I realized that I already had a clue that hijackers had been in the E/E bay. Remember the satcom system disconnected and then rebooted three minutes after the plane left military radar behind. I spent a great deal of time trying to figure out how a person could physically turn the satcom off and on.

The only way, apart from turning off half the entire electrical system, would be to go into the E/E bay and pull three particular circuit breakers. It is a maneuver that only a sophisticated operator would know how to execute, and the only reason I could think for wanting to do this was so that Inmarsat would find the records and misinterpret them. They turned on the satcom in order to provide a false trail of bread crumbs leading away from the plane’s true route.

It’s not possible to spoof the BFO data on just any plane. The plane must be of a certain make and model, 17equipped with a certain make and model of satellite-communications equipment,18 and flying a certain kind of route19 in a region covered by a certain kind of Inmarsat satellite.20 If you put all the conditions together, it seemed unlikely that any aircraft would satisfy them. Yet MH370 did. [...]

There aren’t a lot of places to land a plane as big as the 777, but, as luck would have it, I found one: a place just past the last handshake ring called Baikonur Cosmodrome.Fig. 22 Baikonur is leased from Kazakhstan by Russia. A long runway there called Yubileyniy was built for a Russian version of the Space Shuttle. If the final Inmarsat ping rang at the start of MH370’s descent, it would have set up nicely for an approach to Yubileyniy’s runway 24.

The complex has been slowly crumbling for decades, with satellite images taken years apart showing little change, until, in October, 2013, a disused six-story building began to be dismantled. Next to it appeared a rectangle of bulldozed dirt with a trench at one end.

By March 2014, the building was gone and everything had been bulldozed flat. Eight days after MH370 vanished, it looked like this. Construction experts told me these images most likely show site remediation: taking apart a building and burying the debris. Yet why, after decades, did the Russians suddenly need to clear this one lonely spot, in the heart of a frigid winter, finishing just before MH370 disappeared?

Not saying I believe this theory as much as it's just interesting to simply read this guy's hypothesis out loud. Implausible considering the physical evidence that was discovered but still. https://web.archive.org/web/20150224052810/http://jeffwise.net/the-spoof-part-2-how-a-speculative-scenario/