When you first started in Discussions you would have received mail from Discobot, it would look something like this…
You need to complete the tutorial (tasks from Discobot) to get the Certified Badge. After you’ve received the Certified Badge to get the Licensed Badge you have to complete the advanced tutorial by typing in ‘@ discobot start advanced user’ in your mail to & from Discobot (I’ve separated the @ because I don’t want to call him here, lol)
I hope that helps.