This secret PS4 feature helps you unlock trophies - PlayStation Universe
Astro's Playroom Trophy list: How to unlock all the hidden and add-on trophies explained • Eurogamer.net
If you've fulfilled PS4 trophy requirements on PC or Xbox, you'll auto- unlock the platinum trophy upon CS-ing your characters onto PS4. : r/DestinyTheGame
PlayStation trophies you earn are now worth some cash - SlashGear
Sony Patent Looks at Awarding Trophies in Games That Don't Have Them