The onus of explaining is on the person claiming astral projection without any proof of basis in reality, not on the person being skeptical of those claims. It's called the burden of evidence.
astral projection is just oobe and "experience" implies subjectivity w/no claim of objectivity and no corresponding onus or burden or anything
I've done it, it's not that hard. There's plenty of books about how to do it. I'm not interested in arguing with internet idiots though, sorry.