The intent of this thread is for everyone, who's willing, to list their most and least favorite attitudes on this site during the last year. Many or one or none - all are ok.
The intent of this thread is not to discuss things listed in it. Ideally this thread will look like a concise compilation.
My Favorite:
When, during discussions, people make sure that their posts are productive or positive or valuable in some way or another.
My Unfavourite:
When, after being unpleasant to others and the others express disapprovals or dislikes to it, people don't take it to heart.