Dan's had a few channels that he either took down himself when he rebranded them (he always has the diet obsession videos, but also the singing videos, the comedy videos, the political videos, etc.) or that YouTube took down. There was at least one more before this that had hundreds more videos.
Here's a YouTube comment from last night by Kamilar/Dan, as he vows revenge on the "haters":
comments

kamilar kulturistul
Yesterday 10:07 PM
I will get back at the haters. This was the last drop. I want revenge. Haters I am coming for you.
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So if someone goes on a rampage in LA today, Kamilar/Dan is the most likely suspect.
Wow! I know he used to have a TON of vids on there that you could only access with a direct link. Wonder if he's upset about it. Probably not though; he most likely thinks they're haters at YouTube because he's such a good person.
In other news, here's a discussion from yesterday on Dan's Facebook page regarding his quick-to-be-deleted Winston speech videos. Is it just me, or does it seem like he's begging for donations every time he lets us know that he needs internet access at his place?
This pretty much confirms my theory that he was using Wu's content without permission. If you're asked to edit together a video for someone (and we don't really know what Dan was allegedly hired to do, just Dan's autistic interpretation of it), you can't take their content and pass it off as your own. I don't know what "ContentID" is but you'd think the video getting taken down repeatedly might have clued Dan in. Maybe he had too much gluten that day.
Also, while I don't advocate censorship in any way, but with hundreds of videos where he goes on and on and ON about his hard cock, or how he should be allowed to fuck underage girls, or approaching 12-year-olds on the street, or describing how he's jerking off, or how he has a bottle stuck up his ass, or Kim shouting racial slurs, or just the fact his main gig is stalking women (sorry, "accosting")....is he really surprised he got strikes against his channel? YouTube was probably just looking for an opportunity to take him down. This is a guy who very recently posted that the cops who came to his apartment to investigate molestation charges against him should have known that girls develop earlier due to dairy products and that his reptilian brain couldn't help it. "It's so stupid, it's such a stupid law." His brain doesn't work, which is why he thinks he should be allowed to fuck 12-year-olds and why he makes YouTube videos of himself moaning, jerking off, and screaming into the camera.