(Just as a warning before reading this, i don't know if i'd explicitly call this an NSFW entry, but it's definetly not for the faint hearted.)
Ok, the story behind these videos are genuinely insane. A company known as Amzoy sold an automatic Cat Litter Box which was supposed to be, well, what it said on the tin. Unfortunately due to how poorly it was designed, it didn't end up cleaning much litter, and instead was more effective as a guillotine. This machine killed hundreds of cats before mainstream news broke out about it, and one day after it did, the company behind the product tried to remove any traces of their past from the internet. Unfortunately for them, i foresaw that they would do this. THAT'S RIGHT BITCH, I ALWAYS KNOW!
Here are the now deleted tutorials that were once on Amztoy's YouTube channel:
Here's a video that explains the whole situation if you want more context:
(Oh yeah, and i can confirm to you right now that from the like to dislike ratios that i saw, not a SINGLE video had a like on it that wasn't self liked by the people who made the video. And if you're going to try and convince me that it wasn't a self like, well, this wretched company changed the review of someone who had their cat murdered from a warning to a positive review. They'd absolutely like their own videos, come on now.)