Demanding importance is rather tricky to comprehend. It refers to someone who is extremely choosy and disapproving. A persnickety individual often be fastidious and has high standards when it comes to expectations and flawlessness. Their fastidious nature can be perceived as commendable, but it can also lead to excessive criticism and avoidable dissatisfaction. Being persnickety is typically related to exact attention to detail but can also be seen as a form of perfectionism.