>>109554844From what I remember, the nerd ginger girl was just that, a generic 1 note nerd character, her only other quirk was that she was tall.
The generic guy in Penny's group had no real personality (at least from what I remember) and was mostly just there to get raped by Penny's ugly hoochie friend.
The Hispanic girl actually started off as another one of Penny's tormentors in the early episodes and I don't know why the writers decided to retcon her as another one of Penny's friends.
Also yes, when they weren't generic, they were just shitty friends and people overall.