Users will be incentivised for social activity on a platfrom, so they can get free tokens (not only for ad watching)
Also at the beginning video producers will be subsidised, they will be creating subsidised video on Flixxo and promoting Flixxo on youtube
Can a user watch a video for free and then later get incentivised for sharing or whatever? If not, many will not bother. Psychologically, the first step is very important. Let them watch a few videos for free to break their resistance. Then if they want to view more videos, they have to earn flixx by sharing or whatever. Makes sense?