Buy, Sell Methods are garbage. Bought 3 from them and they are all garbage. One was selling getting articles written for businesses to get in the Huffington Post, and Forbs Online magazine and sell that service for big money. (But you have to send it to thousands of bisenesses to get very little inquies and hopefully get someone to bite.)
Another one is that you send out a fax accidentally to a wrong business marketing your services with as if you sent it to the correct busines with an agreed on price which sounds like a deal in the hopes it peeks the wrong business curiosity and they be tempted to call requesting similar services for the same rate. (Same as the 1st one. You have to send it to thousands of businesses to get very little inquies and hopefully get someone to bite.)
The other is arbitrage where you resell Intergram placement on Influencer's post. Basically the Influencer will quote a rate and you resell for more money.
All garbage if you ask me.