It's happened, on couchsurfing rather than airbnb, but it's happened: http://www.dailymail.co.uk/news/article-1205794/Rape-horror-tourist-used-couchsurfing-web

It's happened, on couchsurfing rather than airbnb, but it's happened: http://www.dailymail.co.uk/news/article-1205794/Rape-horror-tourist-used-couchsurfing-website-aimed-travellers.html http://www.dailymail.co.uk/news/article-1205794/Rape-horror-... Doesn't seem to have stopped the growth of couchsurfing.