The tweet is verifiable. That a porn party took place at that residence seems likely.

There is no verification this occurred over airbnb. There is no verification that the tweets were by anyone other than the resident or owner and no verification that the tumblr post was written by the resident.

All of this, including the tweet, could be a pretty simple hoax.

And worse, it's from tumblr.

The premise you restated was the basic post itself: Hey! This shit happened to me.

I asked, why should we believe this.

You said, "Because shit happened to that guy!"

Until airbnb responds we have no reason to give this anecdote any credence.

And you were totally snide. Your apology is disingenuous. "Sorry you felt I was being snide" is not an apology. It is a faux apology.