This news story explains what happened to The Daily Stormer. It was indeed the result of the Buffalo shooter mentioning the website.
https://www.globaltimes.cn/page/202205/1265811.shtml
Here is another story about it:
https://domainincite.com/27880-china-yanks-daily-stormer-domain-after-buffalo-mass-shooting
Despite his support for Russia and China, they would have him jailed if they had it their way.
Something else that comes to mind is that DS specifically calls against such actions, so dropping the domain for such a reason is at least hypocritical.
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