Comment by wpm
7 months ago
Yes, it's stored client-side in a cookie.
Surely you don't expect YouTube, a company that doesn't store any data at all actually, to be able to store a single boolean value somewhere in your account, do you? This would be impossible for a company as broke and small as YouTube.
On the bright side, you could probably write something to just always reset that cookie before loading the site.
YouTube is a small and scrapy startup. Sometimes they have to move fast and break things