Just curious, how are you handling the legality if at all :)
Are "popularity contests" considered sweepstakes or lotteries?
My research has led me to this and from what you've said, you might be in the "lottery" zone despite trying to be a "sweepstakes".
https://sterlingmiller2014.wordpress.com/2018/06/18/ten-thin...
Curious about what you're working on now, feel free to come join HackerStash and share your progress ;) haha