It's got to do with the Game Jam this game was part of. I am not quite sure how this system works, but I assume the dev can pick these wild cards and design their game to include the stated features. I don't know if there's a reward for fulfilling more wildcards, but this seems to guide the development into a certain genre, which probably changes each year/jam
It was bonus criteria I had to adhere to if I wanted to score well in the game jam. Part of the rules for getting credit for adhering to the bonuses was that I made it very clear which "bonus cards" I was going for, in the game (that's what you're seeing here). Admin card was chosen by the admins of the site the jam was held on, patreon card was voted for among the website's patrons, and community card was for anyone to vote for who was on the site a few days before the jam started.