Hi,everyone

hope its going well,i joined this forum in 2013 and i was a newbie and have a great enthusiasm about bitcoin,i was in great movement of grabing 1st bitcoin.i wanted my first bitcoin instantly,so the start posting my links and post on boards and spam the whole board due to which i got negative trust rating.
Now its 2014, i am grown up and have great knowlledge about bitcon and other crypto currencies.i am now worried about my trust rating

so tell me how to remove negative trust rating?