Scalping might be one of the best way for a broker to earn from their clients, but only for honest ones. If a broker is scam than he will never allow that, as they are market markers so they need time to steal our money, but with scalping we can earn fast and close it, so that’s why most don’t allow it. I trade with a true ECN broker like OctaFX, as they allow me to do scalping as they are a legitimate and true ECN company, so they are happy if we make profits not like other brokers.