I think you're more annoyed with the personality than you are with the drug use. There are responsible and irresponsible users of illicit substances. I liken "drug use" to alcohol consumption. Both are stress relievers for a lot of people. If there are younger kids playing the game, that's not the responsibility of the substance user to watch what they're saying or doing; it's the responsibility of the parent to monitor their minor's online experience and judge whether or not that's an environment they should be exposed to. In terms of the game, it should be inconsequential. If I smoke weed or drop a tab of LSD, I'm probably NOT going to mention it, but the only thing that should matter is the quality of my teamwork. I don't think "LFG" should factor in the upstanding nature of the party members. I understand the overall message you're trying to convey but I would caution against demonstrating an air of pretentiousness when it comes to non-gaming related things. Different strokes for different folks.