Well, they cause me harm, because I feel that the developers are trying a cheap trick to get me to play their games. And also, popping it open in some places is unacceptable.
Otherwise, there’s places for those types of games.
Life is the same. What is the point in “winning life”, just so I can be burried with some medals, and remembered for a few years, before being forgotten, while everything I did is undone.
I found one of those genies that multiply in someone’s multiplayer room.
I farmed the Valkyrie for wishes until I was broken, but I still could not reliably cast my own wish spell. Turns out, it gets harder to cast the more you level it up. You would need some ridicilous stuff to counter that.