That is an idiotic logic because the Duty Finder is mainly a place for people who are new to a run. In the quest description/objective for dungeons, every one of them says "Use the Duty Finder to enter (Said place)". So of course a "noobie" is going to use the Duty Finder to enter this new dungeon that they have never experienced, and yet people join the Duty Finder for speedruns knowing that they have a huge possibility of getting a "noobie" in their party. Through my whole playing experience not once did I join a group through FC/Linkshell or shout, when I just opened a new dungeon. I ALWAYS used the Duty Finder. Everyone knows (Or should know) that the Duty Finder is not a place for you to be picky about who you get in a party, and its the exact attitude of people such as Austin whom make playing the game, communicating and working together with your party even harder.
PS: I never said anything about my play style or saying it was the right one, but I used common knowledge to piece together what type of player uses the Duty Finder and why.