Lightroom 5 appears to have installed as stand-alone, while LR6 integrates with creative cloud... so LR5 might not have phoned home. Still, I'd like to see details about what the every 30 days means. If it only checks every 30 days, and on day 29 you go on a trip or your internet dies, you're out of luck after a day. If it checks daily, but is willing to accept 30 days of not hearing back, then you're always good for a 30 day outage/trip.