[smgoller]

The author explicitly states that he posted in order to corroborate what aspects of Jane Doe's description of the event that he could. The more people that provide evidence about a thing, the more likely others are to take it seriously. So there is everything to see here. (edited to fix verb tense)

[DashRattlesnake]

He provided evidence that there was a party, but there's nothing wrong with parties. He didn't really provide evidence of anything else.

It's like trying to corroborate a report of a crime in San Francisco by helpfully saying "Yes! I've been to San Francisco, and it is by the bay."