The amount you win is based on the size of your bet relative to the others on your same side. For example, if the price closes Over the spot price and you own 10% of all the purchased Over contracts, you will receive 10% of the total of the Under contracts.
Does it mean there will be no platform fees?
Contracts cannot be purchased in the final two hours before expiration.
Any purchases during the 10PM-12AM blackout will be considered a donation.
You might want to consider either hiding those addresses completely or simply censor a big portion of it upon reaching the last two hrs.
Overall, it looks interesting.