What is Reputation?if you look slightly above people's messages there is a small + & a - icon.
Reputation is basically what people think about you and your posts, if you post useful messages and guides generally you will recieve positive rep, if people give you it by pressing the + on your message.
if you post spam and useless messages and insults you will most likely recieve a negative rep and your rep will decrease.
so if you see a useful message then please give them positive rep, the same applies if its spam or an insulting abusive message then give it a - rep.
also feel free to ask for + rep when you post a good guide/tip or tutorial this will remind people
There is also a thanks button to the top right hand side of there post you can click this as well to thank them, this will also show your name as having thanked them so please do this for guides/tips/tutorials as well as the +, however a thanks wont be needed for individual useful posts in that case use just the +.
so thanks button and + for useful topics, and + for useful messages
cheers guys