Nothing to be changed. be social make friends,join guild,join community, and play with like minded individuals simple as that.
As someone making keys my group= my rules.
There is endless army of dps i can pick whoever i want they are basically disposable and if do few with same i add them and boom made dps friend for another runs nextime i first ask friends if they want to do keys then guildies then community pug is my last choices and most times i have full premade/just miss 1 dps from pug which i take the best because why not ?
+ People want to play with like minded individual