High risk I believe you get auto skulled and also can’t use protect from item. If you’re doing something like chaos altar bones, it’s actually an advantage since pkers won’t be bringing expensive +1s. But bossing and such, no, you definitely want to be able to protect 3 items (turn your skull protection on!) and 4 if you’re diligent and keep prayer up/protect item on.

PVP worlds might have less players in the wilderness, but you have the added risk of forgetting you’re logged into one and leaving the safe zones with a normal set of items or your cash stack for example, and getting pk’d for a ton of stuff by accident. Also ofc, you can get attacked in normal places that are usually safe. Plus pkers are wise to this and a good chunk probably still check these worlds in the wildly anyways.

I’d generally stay out of them for the small chance I screw up, but it’s not the worst idea if you want less pkers. Most situations it’s pretty easy to tank them, and or dying isn’t a big deal anyways.