I think most professional scalpers take higher risk than others as they only aim to enter and exit in seconds or minutes but also bring back huge earnings. Why scalp? It is because scalpers don't have long-term views or they cannot as market sometimes is unpredictable.
In my the past, I thought there was no problem if some broker didn't allow scalping but in fact, these brokers could be the scams.
I don't agree that. Scalping is not prefixed strategy. A trader intend to do if there is an increase of pips. If there is no increase, then the trader wait for some times to increase the rate. Or if trader don't wat to wait then only he make a loss to start new trade.