[yorwba]

1. I think the comment was meant to be sarcastic.

2. Analysing religions seems to be within the domain of sociology.

3. Determining the truth of different religions is kind of tricky, because a lot of them are about the afterlife and unless there is a way to return we can't get any information about it. But if the local priests claims that "anyone who desecrates the temple will immediately be smitten by lightning", defecating on the altar seems to be a surefire way to find out. And of course, if a valkyrie hands you a mug of mead after your death, you know you shouldn't have prayed to Cthulhu after all.