Can someone break it down and tell me what (or who) exactly qualifies as a lead? I've tried multiple times to use a proxy to test my own content locker, but regardless of the offer I can't get it to unlock? It just takes me in a never-ending cycle of advertisements/surveys and no matter how many of em I fill out, when i go back to the content locker it is still locked. Is a lead pre-defined based on specific criteria? For example, an offer may only be looking for people in north-east states so only email submits with a zip-code in the north-east states would qualify as a lead?