In no particular order, here are the main benefits you would get for being a member of a social panel in all the social media platforms you belong to. To start with, you can actively discuss and contribute to topics that you are interested in life. Sometimes as you probably know, there are times you will get on twitter and find everyone discussing about things you care less about. However, if you are on a twitter panel that deals with topics and areas that interest you in life, you will forever enjoy your experience on twitter.
On the other hand, being a member of any online community is just fun. Imagine having an instagram panel where you share pictures and videos with people who appreciate them. A place where you can post a picture and get a 1000 likes instantly. Again, you learn more about life when you are in a community. Your twitter panel for instance could help get answers to issues you have, motivate you or guide you in your endeavors.