With the little knowledge I have, I have seen a lot of people scalping and making it than those that does a full trading(hours, days) but they tend to lose so easily can we say it greediness or it's not advisable generally
Scalpers are sometimes impatient people, people who know that they will not be able to wait long hours monitoring their trade, so they decide to engage in short trades to make profit quickly. Not all scalpers loose their profit to greed. A scalper who is greedy will also take that greed to trading long if they decide to stop scalping, while a trader who scalps and not greedy, will also not be greedy if they decide to start trading long. Greed is an inbuilt nature, it does not matter if you are a scalper or a long trader, greed is bad and is a characteristic that needs to be controlled because it can lead to loses.