What is interesting at the meta level is that some faiths, notably the Mormons, have a duty to proselytize, so if Facebook ad targeting is an efficient way to convert unbelievers, it becomes a moral duty to use Facebook ads rather than sending missionaries.
This also sounds slightly nightmarish once every faith will start bidding wars for some piece of your soul.
This also sounds slightly nightmarish once every faith will start bidding wars for some piece of your soul.