I myself once had an Enlightenment experience, which I wrote a gook about, but that experience was mine, I have no proof of it truly happening, it was an experience that only I could ever know. Now if I argued that my experience was real, and I could not prove it, why would I argue ?
There is nothing wrong in believing whatever you believe, that's how it should be, but to debate it is to show our own ignorance, we can point to certain things, and then its up to the other to experience it or not, and again it becomes their own experience, and around and round it goes.