Well, all you need to do is read about Krupp Steel
here in the Wikipedia to get a good overview of their past.
I am also no going to punish them for their past misdeeds. Unless they show no repentance. Krupp shows that they are not at all proud of what was done then, so I do not bear them any ill will. I am sure the good Doktor knows that a lot of companies did lot of things then that they wish now they had not done. You do what you need to do to survive, and sometimes that is not the best or right thing to do. If I was going to punish every large company there is now that has ever done any really bad thing to get where they are today, I would not buy much of anything at all.
I am far more concerned with how a company acts in the present. Companies that seem unable or unwilling to change for the better or that stick their noses into things they should really steer clear of, those are the ones I try to punish by not patronizing. Companies like McDonalds and organizations like AARP that are at odds with how I feel the Second Amendment is read for instance, I do not patronize. I am nearing AARP age and I will tell you that I would die a pauper before I saved a dime by being a member of theirs. I haven't been into a McDonalds for decades. Anyone with a gun who goes to their restaurants is a fool.
As a Christian, I am asked to forgive those who seek forgiveness. To do otherwise it to risk having my same unforgiving nature turned against me come the day I am Judged. Not going to say I am a saint and that I always do this but I am not going to punish a company like Krupp when they seem at least to be asking folks to forgive them. IN any case, I really don't have that many knives with Krupp steel in them. As I said the only type of steel I really try to avoid is the VG-1 and only for the reasons I mentioned before, not because it is something that I think will fail or chip etc.
AK74Auto, again I ask that you forgive me since it seems I have made you feel like this question should not have been asked. That was truly not the way I meant it at all and I suppose that in the future I will not say anything at all since there are too many who misunderstand and seem to feel I am trying to be harsh. If that really were the case, it wold be crystal clear that i was what I meant.