an idiot plot is a plotline that only works if everyone involved has brain damage, because if anyone had any semblance of sense, the entire plotline would be avoided.
a non-ending is a cop-out where the writer doesn't know how to end a plotline and chooses to avoid dealing with any lingering questions or bringing anything to a real conclusion.
there are numerous episodes of the show that feature mixed messages or outright disgusting/dangerous messages about relationships and friendships that show the writers either don't understand the subject matter they're writing about or are very delusional about it.
these are all examples of objectively weak writing that could only be called "good" if they were being used either to establish a particular theme (which s
SU doesn't) or to lambast other media that feature these elements.