When you say autonomous AIs, do you mean AIs that are autonomous and superinteligent?

AIs that are initially autonomous and non-superintelligent, then gradually develop towards superintelligence. (With the important caveat that it's unclear whether an AI needed to be generally superintelligent in order to pose a major risk for society. It's conceivable that superintelligence in some more narrow domain, like cybersecurity, would be enough - particularly in a sufficiently networked society.)

Do you think they could he deployed by basement hackers, or only by large organisations?

Hard to say. The way AI has developed so far, it looks like the capability might be restricted to large organizations with lots of hardware resources at first, but time will likely drive down the hardware requirements.

Do you think an organisation like the military or business has a motivation to deploy them?

Yes.

Do you agree that there are dangers to an FAI project that goes wrong?

Yes.

Do you have a plan B to cope with a FAI that goes rogue?

Such a plan would seem to require lots of additional information about both the specifics of the FAI plan, and also the state of the world at that time, so not really.

Do you think that having a AI potentially running the world is an attractive idea to a lot of people?

Depends on how we're defining "lots", but I think that the notion of a benevolent dictator has often been popular in many circles, who've also acknowledged its largest problems to be that 1) power tends to corrupt 2) even if you got a benevolent dictator, you also needed a way to ensure that all of their successors were benevolent. Both problems could be overcome with an AI, so on that basis at least I would expect lots of people to find it attractive. I'd also expect it to be considered more attractive in e.g. China, where people seem to be more skeptical towards democracy than they are in the West.

Additionally, if the AI wouldn't be the equivalent of a benevolent dictator, but rather had a more hands-off role that kept humans in power and only acted to e.g. prevent disease, violent crime, and accidents, then that could be attractive to a lot of people who preferred democracy.