re: Youtube has fallen

It's not about how you sign in, if at all. They track IPs, like PornHub, which is why until you close the private browser window (clearing non cross site tracking cookies) you see content built on what you have clicked on. The Fat Electrician? You're going to get served BRRRRT videos (never bad.) Like Latinas with certain attributes on PH? You're going to see more of those, whether you ask for them or not.

Ultimately, very few of us care about being tracked, anywhere. Look at your Venmo feed. You do see people you don't know paying your lawn guy? Some other chick paid for Finding Nemo to a friend. Someone I haven't seen in a decade just paid a girl to do her brows 13 hours ago.

It's a wreck, but I don't think anyone actually gives a shite.