Demanding importance is quite difficult to understand. It refers to someone who is vitally selective and critical. A persnickety individual often be fastidious and sets the bar high when it comes to criteria and perfection. Their fastidious nature can be seen as admirable, but it can also magnify unwarranted criticism and unjustified dissatisfaction. Being persnickety is often associated with exact attention to detail but can also be seen as a type of pedantry.
