Yeah I think the advantage is that you can get profits quickly and maybe you can get it every day, even though the benefits you get are small, because you have to make the best use from the margin price, but the risk will be far greater than holding it right?
Depends on the current market situation. if its a bull market yes you can earn profits quickly but in bear markets like what we are experiencing now, its hard to be a day trader. You have to chose carefully or else you will end up shifting from day trading to long term hodling. for day traders, setting an achievable goal is important. Setting a 10% profit in a day might not be a good idea.
You're cause setting an achievable goal is also among the rules and regulations of cryptocurrency day trader but with the current marjet status I think 10% profit you mentioned is more than enough. However, the only benefit I see in day trader is that they are always the first to make profit from the market each time the bullish market start.