Is the mention of the history of 3D printed firearms likely to be the issue, I vaguely remember those causing similar issues before. (Mandatory clarification: I don’t necessarily agree that that’s a good reason to shut an account, but Google may do)
Yeah, I don't know the channel but clicking his twitter profile I can't say it really seems entirely "random" or out of the blue. He even tweeted about getting strikes recently.
Regardless it's more so that Google wants people to use their platforms but can't be bothered to have humans contact people when theirs issues. You just get an email saying you're fucked and good luck. Happens with people's Google accounts too.
Google did it again and randomly deleted a popular community standards breaking channel with no notice. It's unfortunate that they didn't catch it before it became popular.
I mean, of course the many previous times they were warned about their content and demonetized them kind of counts for both giving notice and detecting it earlier.