I agreed it's weird and disgusting placing a bet on issues like this as it involves human lives and we should show some empathy instead of taking advantage of the situation to make money or have fun. That should be totally discourage and condemned. I don't think I will ever involve myself betting on issues like and even if I do (99% not likely to happen) I don't think my conscious will allow me to spend the money if I eventually win.

That being said, is it that bad talking about war? I see no problem discussing about wars unless the discussion is either a mockery or attempt to intensify the situation.