Hi,
sometimes i switch from pc to nintendo switch and asking myselt, how does the player exp/item find scale? it is only possible to play with max 4 players, but on PC 8 player value .
and i also never find any person playing on the console . i am always alone. am i doing something wrong?
There are only two people in the world who bought this game on Nintendo Switch. You and I. And I don’t play multiplayer, and I spend most of my time on the PC version anyways.
On a more serious note, I’ve never seen any active players. The Nintendo Switch version is more likely being played between friends on closed games.
As for your other question, the game doesn’t scale up. Playing at the limit with three other players is indeed equivalent to players 4. This also means that you only get one NoDrop reduction at players 3. The next breakpoint at players 5 is out of reach to Nintendo Switch players 
With the next patch they implement the /players 8 command to the switch version.
But that only has an impact on SP. Online players are still limited to 4.