Good morning. Thank you all for the answers.
I was not going to spam the network. I'm new here. I had little to advertise the product.
I had a choice: to create senseless posts and boost them up to $ 600, so that people could see them. Or I can send 0.001 SBD to people and write a memo with my promotion.
I thought that sending 0.001 SBD no more than once to 1 user and no more than 300 advertisements in total is the best way out. I couldn't have imagined that this would be a problem and I can be blacklisted by 
RE: Delegations needed! 20% ROI offer to the delegates, weekly automatic payouts. 30,000 SP now!