it's Si specific and is more noticable among Si types. Se types have good Si too, but may lesser use it
so Se types may dress with good taste when want, but then to dress in rather random style
while Si type will more try to hold the style he likes
it can be N related, more about Ne
for example, ESI and SEE are not so good in the understanding of people and it's easy to loose their trust with minor "bad" actions. they mb slightly paranoid, too suspicious, to fantasy redundantly bad about people