I'm not against humanitarian aid to Ukraine during the crisis. Except the money collected from money laundering, the seized money should belong to investors and users who has their money stolen from exchanges and different online services. From another part, this can be also seen as another way to reinvest the seized money by donating them to Ukraine, after the war all those countries who helped it out will have more chances to win investment opportunities and deals.
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Not sure I agree with it personally, I believe that the humanitarian crisis is a much more pressing issue than investors losing their money. Ultimately, my counter argument to your view would be; the investors should have known not to store a large amount of money on those exchanges. I know that sounds awful, and like I don't have any sympathy at all, but I do. I would hate for it to happen to me, and no doubt I would be absolutely enraged. However, I do believe that the humanitarian crisis we are seeing, couldn't have been avoided by the average person, where as the investors could have or at the very least mitigated it. It's besides the point though, the situations aren't comparable.
However, I do agree with your latter part. I do believe that some countries will no doubt be taking this approach to further better themselves in the West in the future. However, this particular situation I think is a little different, since they aren't supporting the war on either side, instead they're focusing on the humanitarian aid which quite frankly is the crisis at the moment. Despite, what anyone thinks about the war, (I'm most certainly anti war) I think all sides can agree the humanitarian crisis right now is absolutely awful.