All you get for finding stuff is more stuff.
www.pcgamer.com
I agree with the user's complaints from this article. Arc Raiders is roughly 75% of my gaming and there are SO MANY PROBLEMS with this game anymore. The patches they have released have made the game more intolerable imo. The problem here the reddit user discusses is getting virtually nothing after turning in supplies that are extremely hard (as a solo player) to obtain. My experience is that when fighting these powerful arcs that take several raiders to kil, i get killed by someone just doin nothing but waiting for me to kill and take the materials from arc enemies.
I dont really care about that happening, its apart of the game, its embark hinging progress on these situations, on top of having 280 slots to hold all your stuff which is a stupidly low amount of space for this game.
Lets not forget the other problems this game has including, name glitch (you cant see your teammates names during the match unless you let a tick jump on you or you go down), the extreme weapon in-balance (losing to a stitcher 1 with a torrente after unloading it into them is not fun lol) and of course cheaters.
This shows to me that the player retention is purely based on people just having fun with themselves, or groups doing things because it sure isnt Embark being a communicative, bug-squashing developer.
EDIT: The implementation of "dont shoot x amount of raiders to get into pve only lobbies" is NOT a solution at all, add a pve mode instead. They already added a pvp-style mode.