If you reject the witch enough times then eventually the spirits will cry out and you'll lose 1-2 happiness every few nights. I don't think it's worth the two hundred coins though
Honestly, I think that Blooket did this in there own way, and it is definitely not copying. I also doubt that Blooket took inspiration from this because there are hundreds of games like this.
I have a fairly weak computer so all the coins that stack up next to the thrown is very laggy. I know I'm probably the only person with this problem, but 10 FPS isn't a very good frame rate.