Getting some stuff that's rare/supposed to be long to get. Like frags/papers/gems is only one way this hurts people, either make it so that one run though, you can get these things, or back off the rule. It's not the goal of these games to permanently cockblock people from things because, well, we don't want you going with people not of the same tag (Although I do understand overly large amount of back farming/pugging can cause hurt on some guilds trying to progress) Is this the pugs fault? Back farming for needed mechanics? No, it's a cue that there is lack of content/desirable content for specified range.
I play this game to slay dragons with friends, I will slay dragons with friends. If it be Exodus/GS/CW/FWF/TU/PR/Steel/Randomcoolguysthatcanpressbuttons, I will. I will also accept my jail/ban if that's so bad of me to do. I'm not going to drag some guy with 300hp to IS and give him an ID for lawls, but if people around my tier/someone really needs help doing stuff, I will help.
Always have/Always will.
(I'm not trying to be overly rude/offensive, just saying in a public game, being able to have hard time funs with only 18 people seems kinda dumb.)