VPNs are fine unless you're trying to do something that breaks Code of Conduct or their Ban/Restriction Policies like trying to manipulate matchmaking (ie to win trade or match against friends - ban worthy) or if you end up with a poor connection (can result in restrictions). Both of the above examples would fall under this bit of the Ban/Restriction Policy: [quote] Bungie regards some behavior to be in breach of the Code of Conduct or the license agreement that governs our games, and therefore may be restricted or banned from some or all game content or activities. This behavior includes, but is not limited to : [..]Modification or interruption of Destiny network traffic [b]with the intent to disrupt the experience of other players or to gain an advantage in the game.[/b][/quote]https://safety.bungie.net/hc/en-us/articles/42308518654100-Bungie-Game-Account-Restrictions-and-Banning-Policies Tldr; don't do shady things and you'll be fine.