Scalp cryptocurrencies? Do you mean scalping trading? If yes, I would say that it only works for you if you have skills because I see many of my friends doing scalping trading and making much profit. Day trading will also allow you to make a profit, but you need to have skills to scan the coin at the market once again. Without skills, you won't be able to get the right coins.

As I remember, Satoshi disappears before Binance launch, so that is not Satoshi quote

As long as people will no need to send their money to pay in your group, I think people will agree to join you. But it is not easy to handle those people in one group because every people will have their reason to join your group. But good luck to you, @OP.