As Magus LaVey observed and suggested, as is one's natural inclination, a sense of humor is an important element in one's totality of expressions. But to whom should this be revealed? This can be linked to Solipsism if not kept in check. One should be aware of to whom it is directed, specifically towards those who may appreciate or comprehend it. But also keep in mind that there are those amongst the populace who are seemingly unable to asscertain metaphor and sarcasm.
To one's own, certainly. To those of like mind, the MetAddams family, definitely. But why the herd, unless it is a proffessional occupation such as a comedian in some capacity, standup or humor writer, and otherwise as part of one's character, and otherwise those one may wish to charm for mutual gratification, then it is an invaluable resource.
Overall, as it is prescient whereunto to dispense wisdom, it is also important to realize whereof one casts one's black pearls of humor. ∞