This goes for everyone. If you’re playing strictly for loot, don’t play in public games. Farm solo or play with friends, or find a clan that has a friendly policy on loot. There will be plenty of people with this mindset, trust me.
Removing an element from the game that encourages communication and collaboration among friends in a multiplayer game is a terrible change. Personal loot is one of the worst, and most egregious ideas you could introduce to Diablo 2. It is a mechanic that made Diablo 3 feel more like a bad MMO or a phone game, rather than an authentic dungeon crawler ARPG.