Make the slightest mistake and you are getting sued!

And getting sued by lawyers, at that.

Exactly this. I wouldn't code legal software for any amount of money.

In Many Worlds virtual particles are simply other universes (other parts of Hilbert space) that have electrons in different positions. They are nearby enough to contribute some amplitude to have an observable effect. Edit a word.

Interesting, thanks!

It does not require FTL signalling for the entanglement to work.

Care to make rigorous how other interpretations require FTL signaling? For that matter, can you actually rigorously explain what it means for worlds to "branch", or why Born probabilities should be interpreted as though they are probabilities in MWI? Saying "all the possibilities actually happen!" doesn't really explain the correlations we actually observe in any interesting way.

You make some good points. Regarding the Born probabilities, the extrapolation of Schroedinger equation to the whole universe seems to make the concept of probability superfluous and the Born rules lose their sense.

Ask them about their enterprise licensing and see if you still have the same opinion.

Death by Snoo-Snoo

If I understand it a free particle is not really quantised; it can have pretty much any wavelength. But when it is confined by boundary conditions (e.g. within an atom) we then get interference and reinforcement in the wave equations.

Boundary-induced quantisation does explain the limited set of acceptable/stable wavelengths around e.g. an atom.

However, what it doesn't explain, is why the amplitudes of such wavefunctions should be what they are. For example, why should the integral of the squared norm of the wavefunction for an electron be 1, if it is not a particle?

The Many Worlds Interpretation plus Sleeping Beauty can directly explain this.

You don't need to hack voting machines. If you control the body that allocates them in your area you send more of them to areas favourable to your desired outcome. So in other areas the lines get too long and some people don't get to vote. That alone will swing things a few percent.

Jeremy Clarkson published his bank account details in his column to back up his assertion that you can send money to a bank account but not withdraw any. However apparently anybody can set up an automatic payment from any account to any other account...

Those were not legal automatic payments

In QM random outcomes occur. By what mechanism are the random values chosen? Many Worlds has a plausible mechanism for this. I'm unaware of any other interpretation claiming the same.