You can block some of those, by the way. YouTube is always concocting new kinds of ads. Think pre-roll ads, mid-roll ads, unskippable ads, banner ads, overlay ads, vertical ads, bumper ads ...
YouTube is expanding access to its Communities ... simply head to their channel. You'll see a banner indicating that the creator has a community, alongside a beta tag. If you don't see the banner ...
Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access information on a device and to provide personalised ads and content, ad and ...