Drawing attention to a specific user and their detrimental behaviour

[AstralSky]

Maybe the moderators can consider revising the rating system? 
Maybe up the rating threshold a little higher, like whenever the puzzle receive 12 ratings, subtract one best and one worst ratings from it and calculate the 10 ratings left. For every 24 ratings subtract two best and two worst ratings..etc.

Btw, I also noticed there`s a person rating 5 star difficulty to generally rated 1 star puzzles, not sure if that`s a troll from the said same person, too.