You know, people who using stop loss is for those who aren't certain what they invest. If people have research anything about their investment before, once they buy the coin/invested, they never will use stop loss. Instead use stop loss, they will keep re-buy/buy the dip because they knows well what they invested.
In my understanding, you do not need stoploss for your investments but your trading must need.
There are a lot of differences between trading and investment. For investments you need to go for fundamental things whereas for trading you just need on that particular day's technical things so that you could get into profits or cut your losses earlier. It means only technical analysis may give you stoploss levels and not the fundamental things.
The new perspective of using stop-loss levels is, not only to cut your losses earlier but to save your time as well. I am personally never entering any trade without stoploss levels.