Demanding importance is somewhat difficult to understand. It refers to
someone who is exceptionally selective and critical. A persnickety individual typically pay strict attention to detail and sets the bar high when it comes to expectations and flawlessness. Their attention to detail can be perceived as commendable, but it can also lead to excessive censure and unnecessary dissatisfaction. Being persnickety is often connected with precise attention to detail but can also be seen as a manifestation of pedantry.