The “current list of vandals that we know about” includes dawekiv148,vecago7283,febevi3666,kasiva6740,tewer84412,nodofi9184,tajoced719,gifokab209,hefiko2692 bojicat389 nomadod999,focipi8484,woyeh15025,bapil95563,joyboy8 cinid15546 and the earlier “palestine forever”
If anyone sees any vandalism by other users please report it by email to the DWG immediately: email data@openstreetmap.org with a subject line that includes the name of the (new) user and/or their userid.
Edit: added some more to list.
… and some more (thanks @Spiekerooger )