I would guess that the sale would make more sense in the context of a place like HN than it would to most fans of the site. They will benefit from the infrastructure and experience that Conde Nast offers, plus the brand lift of being associated with the house that publishes some of the best and most esteemed magazines in the world elevates them to another level as a publisher. The advertising benefits of that will be huge. The sponsorships they'll be able to get for the live events and video series will be bigger. The scope of the site could become more journalistic.