The worst DPS I ever came across in a PUG was a guardian. I inspected him and found out that he was wearing smuggler pants and boots, sage implants, shadow tank earpiece and so on. I think he just ran a bunch of FPs, needed on everything purple then put it on. lol I don't think it's possible to get any more noob than that.
Wow, that's uhm.....just....WOW!