Very pertinent pointer - no stop loss yet book small loss.
Coming to investment styles, I disagree that it is fear that drives stop loss. working without stop losses is for people who consider themselves long term INVESTORS - basically those who either have the capacity or are willing to digest short term volatilities. However as TRADERS, the idea of working without stop losses does not appeal simply because trading is a probability game with positive expectancy. We need to have out Math right in terms of indicators we follow as also money management techniques. As such, it would only but be prudent to stop your losses and let your profits run.
While "investors" tend to go by the performance of the concerned businesses, "traders" differentiate the corporate performances from that of the respective stock performances. The reasons, I daresay, are obvious.