Hardly any potential catastrophies actually occur. If you only plan for the ones that actually occur (say, by waiting until they happen, or by flawlessly predicting the future), then you save a lot of mental effort.
Also, consider the difference between potential and actual catastrophe regarding how willing you will be to make a desperate effort to find the best solution.
Why do you consider a possible AI person's feelings morally relevant? It seems like you're making an unjustified leap of faith from "is sentient" to "matters". I would be a bit surprised to learn, for example, that pigs do not have subjective experience, but I go ahead and eat pork anyway, because I don't care about slaughtering pigs and I don't think it's right to care about slaughtering pigs. I would be a little put off by the prospect of slaughtering humans for their meat, though. What makes you instinctively put your AI in the "human" category rather than the "pig" category?
Putting randomness in your algorithms is only useful when there are second-order effects, when somehow reality changes based on the content of your algorithm in some way other than you executing your algorith. We see this in Rock-Paper-Scissors, where you use randomness to keep your opponent from predicting your moves based on learning your algorithm.
Barring these second order effects, it should be plain that randomness can't be the best strategy, or at least that there's a non-random strategy that's just as good. By adding randomness to your algorithm, ... (read more)
Isn't the scientific method a servant of the Light Side, even if it is occasionally a little misguided?
It is in any case a good general heuristic to never do anything that people would still be upset about twenty years later.
It's amazing how many lies go undetected because people simply don't care. I can't tell a lie to fool God, but I can certainly achieve my aims by telling even blatant, obvious lies to human beings, who rarely bother trying to sort out the lies and when they do aren't very good at it.
It sounds to me like you're overreaching for a pragmatic reason not to lie, when you either need to admit that honesty is an end in itself or admit that lies are useful.
I don't actually know that separate agree/disagree and low/high quality buttons will be all that helpful. I don't know that I personally can tell the difference very well.