I don't think we're compensated for tagging - if that's what you're asking. Tagging is basically used for their discussion search function :)
Thanks for the response on my discussion!
I ahve asked this question numerous times and I have been told that it helps to get your discussion viewed by more persons who are searching for a aprticulat topic .This is because the search uses the tags to locate the discussions
You dont have to put tags on, I dont because Im lazy and admit it..But in saying that..I have found them to be very useful when searching for a discussion..
Tags are very important. Untagged discussions are not easy to found when people are creating lots and lots of discussions every hour..It help others to spot your discussions long after you have created it.