Haha, this is a hilarious idea. I love it.
Clearly this is to combat https://en.wikipedia.org/wiki/Pluralistic_ignorance on the two-person level[0] which is utterly reasonable considering the phenomenon is widespread no matter how much people like to talk about their ability to be socially able to handle interactions.
My objection is that it may make it too easy to get what I want momentarily, i.e. I want to place high activation energy constraints on exiting because in the period leading up to the event, there will be many moments where I dip below my threshold of excitement for the event. However, since activation energy to set up the event is high because of natural constraints (I have to make sure everyone is available, that the event is available, that the venue is available), this means that if I lower the threshold to exit, I will bias strongly towards exiting.
Given that, I consciously hard commit myself to events. Post making this choice I have a far more active social life. This is why I won't use your app. It's because it actually does make a thing easy, but I don't want it to be easy.
Love that you used Netlify to knock it out, though. How did you enjoy the experience of developing it?
0: Really, this is exactly the Abilene Paradox https://en.wikipedia.org/wiki/Abilene_paradox