I have been with the cryptocurrency market for a long time. Especially in the forum. I’ve worked on a lot of campaigns, paid a lot of promotions. Again many did not pay for the campaign. Those who did not pay are members of the scandal group. When some projects come, they take a lot of money and leave the market. They arrive with malicious intent. So the careful person can't catch them even after having a lot. However, some projects complete the distribution process, but the tokens do not fall under the scope of the exchange. So bitcoin payment or dollar payment campaigns are good.