the typical way normal and nice are used, IMO they are swear words
- normal means "conforms to some 'average' that is supposed to exist and doesn't" (comply with the group) 'everyone thinks so (as if they know) somit has to be true'
- nice means "I don't like what you said or did therefore it's not 'nice' even though nice is a totally relativistic word (it has no meaning)" (comply with me)
- people do the same with "rude" and generally the purple who use rude that way are actually rude, do it amounts to projection
my 3 cents