Wepps,
I can totally understand your apprehension when it comes to grouping with possible griefers. But how many groups have really done that to you? I only ask because I only casually group on the Triumph server because all my friends have gone over to Victory. Just finding groups to do a TF or door missions is pretty easy (at least if you hang out in Talos at the train) and I've only come across a few people unwilling to "play nice."
So, (and I know you were really asking the Devs) my question is: what has made you not want to just meet up with random people and go out and play?
