I don't remember with 100% accuracy but I think it's 777 campaign manager who was negative trust rated by a member on DT until he takes care of spammers in his campaign ^^
dunno about 777 campaign but yobit got a negative trust from hilarious for a while and secondstrade admin got a warning
should say that it didn't really 100% fixed the problem in both sides but it helped to reduce the spam by definitely banning the spammers from the respective campaign