This is a rare case when the user is satisfied as he can earn kroiptovalyutu, and the project is satisfied as for a relatively small amount of money receives a large-scale advertising campaign.
This is a simple concept and was the reason for such a mega popularity bounty in the past years. In some companies, many thousands of participants were recruited, which made participation less profitable. But it still didn't stop anyone.
The more people in the campaign bounty, the better for the project itself, as the faster information disperses on social networks