I require for people to join discord when pushing keys, not 15s obviously, but anything 25 and above. Made some cool long term mates in this way and the ones who don't find it fun - just leave after the run. And I agree with OP sentiment. When you have 4 people in voice and the only info other person gets is my route - I will just replace them. There is no benefit to having people in voice if we need to stand afk while I type for a hunter to trap marked mob when it's at X location. I understand if girls are hesitant to join tho, I have a mate who we do keys sometimes, she joined us in the same way as other guys and just stuck around, she told me some stories how pug guys would start messaging her on discord after the m+ runs, randomly ask questions not related to WoW stuff. Weird fucks.