Ask HN: Have you noticed huge spam/scam campaign on YouTube?

Lately in a lot of videos I watch there are comments threads like these (highlighted comment):

https://www.youtube.com/watch?v=GgWUwAr-NqU&lc=UgznDYWp6w610TkP64N4AaABAg

https://www.youtube.com/watch?v=Jk_GcwkfJGs&lc=UgwIGESytvaPKFRwtqV4AaABAg

https://www.youtube.com/watch?v=lPYmD7CyHlY&lc=Ugxj2idH4TessYD_jjF4AaABAg

As you can see it's basically the same spam/scam campaign, I've noticed the same pattern in 20-30% of all the videos I watch on different topics in the last few weeks.