Beginner Mapper Trouble

Hi, anyone can advise me with this case? There is this HAYRIN86 had make a lot of mistake in making the Sandakan, Sabah map. Is there anyway to report him for abusing the map? If not mistaken, he is using his own imagination to draw all the map without any GPS data. All his submission to OSM server is not correct when I double checked with nokia map and google map. At first I thought is just his handling a bit messy so I help him to reconnect all the road point but now I figured out all his submission not in correct co-ordinate.

Anyway I had deleted all problematic submission made by this guy for now.