The issue isn’t afk campers, it’s local.
An afk camper does nothing. It’s when they come back from being afk that they’re dangerous. And they’re only dangerous because you don’t see any difference between them sitting in local afk, or sitting in local while they aren’t afk, until it’s too late and they catch you.
If there was no local, the afk campers wouldn’t need to stay logged in in order to be able to catch you without signaling their activity in local. Without local, they could just log in any time they want without warning you that they logged in.
If you remove local, you remove any incentive for people to afk camp.
Remove local.