all of what you mention here are points that elicit an emotional response - hence, my saying that it’s an emotionally based question.
the laws and legislationed punishments ordained by Allah are for the safety and security of the society and its denizens. the very wisdom behind legislating punishments is to deter and dessuade people from committing the crimes the punishments are legislated for.
not live, but yes, i have seen certain islamic punishments being applied on guilty individuals.
that’s the purpose of punishments for serious crimes that infringe on society’s safety and security. they’re supposed to deter people from committing crimes. if you know that such-and-such punishment is legislated for such-and-such crime then you won’t think of committing it, now would you?
that’s your opinion. and i would argue that based on the bible, Allah would say differently. regardless of the fact that the OT laws are abrogated according to your beliefs, Allah did legislate them – again, according to your beliefs – and even if they were for a specific time and era, the very fact that they were legislated and ordained by Allah negates any “ridiculousness” or “barbaric” nature that you claim is in these types of laws, for Allah is neither ridiculous, nor barbaric, nor inhumane.
here’s an article that you may want to consider reading… although the site isn’t exactly the best, the information contained in this particular article is pretty much on point in terms of islamic beliefs.
crime and punishment in islam. enjoy…

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