YouTube can now terminate accounts that are “no longer commercially viable”
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Use it to backup all your Google data to your own computer, once a year at least.
Could I be locked out of Gmail tomorrow for blocking an ad on a music video? It's not clear to me that the answer is no.
I would consider that wording a step away from destroying other Google properties to protect the YouTube bathwater. But I doubt that is the only condition, or that the legaleze completely matches their actual policy as implemented.
Think about it. You can't even consider being a large video host without massive amounts of spare disk space, and you probably can't make enough on ads to pay just for bandwidth!
I bet that this is why the new terms of service clarify that YT is an offering of Google, and not of some wholly-owned subsidiary. Google's search ads make so much money that you can buy as many computers as you like in pursuit of ads, and then if you happen to use those computers for storing cat videos, well, that's just good use of idle disks!
Now then, those videos can still get tens and hundreds of thousands of views on YouTube. They are the very definition of “not commercially viable” to YouTube, since they can’t have ads on them, but they’re extremely well viewed.
Makes you wonder what will happen next.
Lets say a channel with videos does not get a lot of views, so takes up storage costing X, vs. a channel that get a lot of unmonetizable videos which take up bandwidth cost Y in addition to storage. Maybe bandwidth costs Y are much higher, so the former channels are safe?
Hopefully they give a long notice for the user to back those videos up, or there would be a lot of lost content.
If it's a great purge, it's going to be a huge mess with even Internet Archive teams and volunteers not able to keep up with the immense storage and bandwidth needed.