long term trading if successful and have good luck will get a big profit, many traders who have big capital more trust for long-term trading and ready to accept the risk of profit or loss. so if you do not have the trust and good skill long term trading is very risky.
Sometimes we need to lurk for the dump coins and sell them off when pump came's and I think that is the new scheme made by the traders right now since long term holding is little bit pathetic and cannot be trusted anymore due to scam alts entering the crypto market. But let's assume that top 50 on market cap is the best right now but we still need to be cautious since anything might happen.