This is a forum and the trust system is mainly for the marketplace purpose of buying/selling. Beyond that the trust system has been used to mark users who have tried to cheat the system for their own gains. The flag system is used to mark possible/known scammers.

But you are new user to this forum, I find it funny that you found this section of the forum so quickly. When I was a newbie, I did not get time to check so many sections because the threads in Bitcoin Discussion were already full of new replies everyday.

So you dont need to ponder over your trust rating. If you are going to set up a marketplace thread here, then this becomes an important part, because buyers or sellers will want to know prior feedback on your account.

As long as you dont try to cheat anyone on this forum of money or use more than one account to enroll into a campaign, you should be fine.