I am not a school teacher (IANAST?) but I am connected by blood, marriage or friendship to several of the species, and I've seen more than one of them really struggle to find things to say at report time about the little darlings in their care.
I think there's an opening for a website where teachers
can just download either 101 things you can say about an aggravating little shit without being accused of un-professional conduct and, more important, at least 102 different things you can say about an inoffensive but absolutely average young person whose name you can barely remember.
The latter resource, consisting of vacuous truisms disguised as thoughtful insights, could be re-used on a different website by, for example, over-worked astrologers. The only difference would be in the phrasing.
<technical note>The basic material might be stored as XML, and it would be an interesting programming exercise to write some XSLT which could present this same material in (a) teacher style or (b) astrologer style or maybe in some other idiom again (e.g., management consultant style?)</technical note>
Anyway, the main application would be for teachers, and the main point of it would be the poetic justice of providing this sort of feedback to a student who probably copied all their assignments from the web in the first place.