The most hated thing on steemit is, the persons who comments positively and appreciate your work but dont give you any upvote.
Posting unrelated comments on random peoples post.
The other most hated thing is posting very frequently. AND POOR QUALITY POSTS.
spearing wrong information.
ALWAYS AVOID DOING THESE WORKS . Otherwise you maybe downvoted.
know about sketch drawing contest #10 : https://steemit.com/sketchdrawing/@sparkyez/sketch-drawing-contest-9-theme-education-system