Define "danger" please, because with the level scale, like I really dont have fear
Level scaling is actually pretty good if it's implemented right.
FO3 had it solely based on your level, with little thought to areas.
NV has left it out for the most part, making later areas tough early on yes.
Those early areas however are no challange at all however at any level.
That and by the time you hit level 20+ unless you self gimp heavily ( which I do ), you're left with a cake walk outside of late main quest events.
Adding a thoughtful scaling slope to npc's actually makes low level areas a challange later on as well.
It can be used to scale npc equipment to stronger versions and not have them drop early on.
I just modded level scaling on raiders in my game, better weapons a perk that grants them base DT + a bonus when their health drops, better armour, better weapons, different ammo types, grenades.
My character with cowboy, BC, finesse, BW, CCLF, LA, and a brushgun wearing no armour died several times during one ambush, as did Boone, ED-E survived all the time however..
Level scaling is not a bad thing.
Doing it poorly and copy pasting every enemy type to do so exactly to the players level however is.
To do it well just up the base level to what you see now, Vipers now start at level 8 instead of 7.
Then make them scale to a percentage of the player, 0.66 per player level in my case.
Leaders or tougher npc's can start at 18+ and go for a 1 for 1 scale.