honestly day trade is so random in term of profitability, nobody can guarantee whether you gonna lose your money or make profit, it is at the end of the day comes down to statistic and as of now 90% of trader are losing money, doesn't mean all losing money, if you got the edge you might become the remaining 10% who is profitable.
basically it depends on you and your trading ability, like any other activity, even arbitrage has chance of losing, doesn't mean everybody is losing though.
I think that you could express a best opinion in your comment. So I am also agree with your prefer comment. We also know that short term trading is very risky for any person. If we will be a new traders it will be very risky, because we can not understand suddenly what do we should in cryptocurrency trading. But if we follow in long term trading, it will be very helpful for us. Because when we start long term trading, then we can decide what should need in this time. So I think that we should trying to understand in cryptocurrency trading and need to acquire knowledge in cryptocurrency world, then we can earn best profit from cryptocurrency market.
Expert traders would like to short term trading, they are mostly comfortable to day trading i know some people, long term trading boring for them, they want to make profits in daily, but even expert traders can not make profits in consistently it's impossible, because they don't know what happen in the next after bought a token.