When you've asked a question and a post has answered it to your satisfaction you can set that post as the "Best Answer". This article will show you how to set or remove a post as the Best Answer and where you can do it:
Setting a post as the Best Answer helps the community in a variety of ways:
The next person who comes along with the same problem as you can find the best answer quickly
It lets other people know that your question has been answered - this prevents further answers being supplied unless they significantly add some extra details that might be needed
It thanks the poster of the Best Answer for helping you.
Please do not feel tempted to set your own post as a Best Answer unless you really have a fix for the problem which no-one else has mentioned previously.
There's a couple of reasons to give Kudos – it’s good for the community and good for the member who is receiving the Kudos! It helps identify great posts, when you're scanning posts you can see particularly good posts/threads that have a few ‘Kudos’.
Additionally, Kudos act as a way of recognising the time and effort someone has put in and encourages good discussion. The number of Kudos someone received also helps their community ranking.