Yes, it's bonkers
Thanks for the suggestion. No, I'm afraid that it requires each participant to submit/perform something that's unique. A phrase, a picture they've taken, or something like that.
Almost every online competition here has a field where people are forced to write why they should win, in order to take part of the competition, just to avoid having to apply for a "lottery permit" from the "Swedish Gambling Authority". It's all very Orwellian and surreal
We can't host giveaways either, because of the same reason. It would be considered a "lottery" and require a permit.