I joined a game in progress as tank , tank bailed before first boss was down .

Some people were abusing people for making mistakes etc . I made a simple mistake having only run dungeon 2x as tank and to cut a long story short the paladin belt dropped on first boss . I took the loot and did a runner .

The problem is that the overall game has no community. Reputation means nothing because you will probably never met the same people again usually , this is because there are millions of people playing this game.
Now had I joined a FC run I would've never had quit after getting loot because I know im going to play with these guys again so I have to build a reputation as a solid player.

So how to fix this ? I don't have the answers to that sorry.