Disney could (potentially) get him to not post 'sensitive' photos via a court order. Disney could couch it as he published proprietary info about their new attractions and continued publication of that kind of stuff could damage Disney. I kind of doubt that happened as court filings are public information and stuff about Disney and legal action always spills out. The more likely answers are (1) Disney paid him off to cease publication or (2) Disney intimidated him into not publishing by threat of legal action. Fighting in court is spendy and a deep pocket can often scare people into not fighting.