1. Lighting a cigarette with Zippo may be considered too ostentatious or too formal. On some occasions, using Zippo to light a cigarette may be considered not low-key or too conspicuous, thus giving people the impression of "fool".

2. Zippo lighters burn kerosene, which tastes heavier than ordinary lighters, so using Zippo to light cigarettes may affect the taste of cigarettes. Some people who don't like the smell will think it is a "fool" to light a cigarette with Zippo.

3. The design of Zippo may be more complicated than other lighters or matches, which leads some people to think that it is troublesome or too particular to light cigarettes with Zippo, so they regard people who light cigarettes with Zippo as "fools".

However, this does not mean that all people who use Zippo to light cigarettes are fools. Everyone has his own preferences. Some people may like to light cigarettes with Zippo lighters, because it can bring them a unique feeling or experience. Therefore, we can't easily treat people who light cigarettes with Zippo as fools.