[mbca]

And yet if you post about AirBnB's history of spamming Craigslist users, you'll get downvoted into oblivion. Playing dirty is considered okay on HN so long as you're a YC company.

[dandelany]

Actively requesting your competitor's service and then cancelling it is in a whole other league of scamminess than simply sending out a bunch of unsolicited e-mails to potential users, IMHO. Not a fan of AirBNB's tactics either, but Uber's are way more predatory.

[michaelchisari]

I would also consider that playing dirty, although not as much as answering ads, accepting the room, then canceling last minute.