Your recent search queries suggest you may have cancer, please seek advice from your doctor.
Or some time in the future...
The pattern of your searches seems to indicate you are a terrorist, we aren't telling you and we have called the thought police.
1.They agree legally bindingly not to give any of my data to anyone.
2. They do not show me a single ad anywhere.
Obviously, that would mess the current business model of everyone counting on adwords revenue, so I am not holding my breath here.
At the moment it's the opposite.
I believe it is actually kore profitable than advertising. With ads, an average person is worth between $0.01 and $1 a month (depending on what type of ads), much less than the $9 for YouTube Red.