I'm not sure if this counts as unaesthetic move, it's rather a separate topic... That's
armography
I usually pay extra attention to skaters' arms and I have a list of moves that ruin the aesthetic impression I get from the program - mainly because they woke up a critic in me and, instead of enjoying the program, I start ticking the boxes:
"windmill arms" and "paddle arms", refers to the respective choreographic moves;
"propeller arms", when a skater swings the arms around overly energetic, and "airplane arms", when he/she skater around with straight arms extended;
"forgotten" and "unfinished" arms when one or both arms hang pointlessly between choreographic moves or elements, there belong also "forgotten/unfinished palms" and "forgotten/unfinished fingers";
"broomstick arms" when skaters' arms stay stiff and straightened for most of the time;
"deformed arms" when arms are disproportionally or awkwardly bent in a supposed choreographic move;
"out-of sync arms" refers to moves/gestures being out of sync with the music;
"out-of-line arms" refers to arms not creating a meaningful line with the rest of the body:
"generic gestures" - needs no description I guess
Having said that, a charismatic skater can have all these flaws and still create a pleasant overall impression. Although sometimes I experience a great desire to say a word to their choreographer