Welcome, for a while I've been searching the forums for particular things I was not aware of. I did also see many people posting questions about things they did not understand. To my surpirse lots of them were related to the Forum System.
After a thourough search, I've came up with the most important links that helped me through, and probably will help you too.
If there's anything missing, something I should edit please post and let me know. This is for everyones use, and facilitating things a bit.
Forum ranks/positions/badges
John (John. K), created this thread on the 17th of April 2013. The function of ranks is explained here, main rankings, sub-rankings and staff sub-rankings. For more information, this link will help you.
Activity
Trust - (Default Trust) -
This thread was also created by theymos, how does the trust system work? What does the 3 different numbers mean? What does Default Trust mean? How does Risked BTC affects the trust? Common questions simplified within a few consistent sentences;https://bitcointalk.org/index.php?topic=211858.0
Recover accounts (Hacked, stolen, forgotten)This will help you a lot, not having to create a new account and spam the forum with your questions about your hacked,stolen account, theymos created this thread in March 03, 2014. Fortunately this thread is a sticky, but sometimes missed by many of our members. It's simply one click away.
https://bitcointalk.org/index.php?topic=497545.0Donating (Ranks,Perks)Want to show gratitude to this forum? To the staff, members ? There's no better thing you can do, donating will not only mantain the forum, but offers a few perks you shouldn't miss, theymos explains it here;https://bitcointalk.org/index.php?topic=38071.0 
