*cracks knuckles*
*arm falls off*
crap.
Anyways, yes and no! A nice specific answer for you. People lose the majority of their inhibition when communication online (Common knowledge) so the darker aspects of their mind are allowed to come to the foreground. This has the effect of over exaggerating their beliefs since the ones they hold themselves are generally repressed to fit in with the rest of society.
Take myself for example, I would happily and brutally murder someone for animal cruelty. Would I say that in public? No since it would get me taken into hospital most likely. But online I can be as graphic as I choose to be in describing the ways in which someone would die for skinning a dog.
So, to take it to your example I think that the person you are talking with most likely [i]does[/i] believe that fear/civilian massacres are an effective way to control a population and to punish them for wrongdoing. But at the same time, like I said that the darker aspects make themselves bigger because they are usually repressed in your mind he probably wouldn't agree with genocide in the real world however it wouldn't be a far fetched situation to see them as a soldier 'following orders' and emptying an MP40 into a crowd of jews in the warsaw ghetto.
People online can either adopt a persona, which complicates things or they are able to express themselves freely via anonymity.
Any questions will be happily received and if you want me to clarify/expand on something then just say.
English
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*picks arm up* This yours?
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Ah yes! Thank you, they seem to just keep running away <.<