The weird part to me is that some people are seemingly trying to downplay a popular website abusing visitors to DDoS someone.
How does your information (two angles) change anything at all about that fact? Normally if any website was caught abusing visitors to DDoS another website there would be no debate about why this is a bad thing. What about your other angles was supposed to matter in deciding if this was a bad thing for a website to do?
Two wrongs don’t make a right. Feeling wronged by someone doesn’t give you freedom to abuse every visitor to your website to DDoS someone else.