Lock some content without certain risks.

Almost every area of the game, and every spawn can be accessed by a naked. This makes risk-free scouting very easy, and also reduces the required risk involved when ganking people farming. It can also allow extremely low-risk loadouts for farming certain spawns.

Locking some areas behind rare metal doors which can be opened by a rare metal key (without consuming said key) would mean that anyone accessing those areas would be risking that key.

Locking some spawns with an interactible object which could be activated in the same way as the door would mean that anyone farming those spawns would have to be carrying at least a key. I'm thinking about certain rare-metal golems who's optimum farming pattern is to farm naked, then recall, only ever risking a few regs and the loot from a single spawn.

Perhaps the very simplest version of this idea could simply require a player to be carrying the appropriate key to activate dungeon teleporters, appropriate to the difficulty of the dungeon.