If you have an issue, add the Admins to Steam or as Apache has said, apply to be an Admin. I also know one attended the name issue/hacking issue as I was playing with them on another game and they dropped to attend.
I can understand you being frustrated with the issue of people leaving but as said above they are volunteers (I have been an Admin myself and could not always get on when an issue occurred) if an Admin is unavailable then simply record a demo, give a time frame and send it to Marter (Exec), Fooligan or Steff (Seniors) and they will handle it appropriately.
No. I am not a nice man. It's important that you understand that. It's going to save you a great deal of time and effort. There is not a warmer, kinder me waiting to be coaxed out into the light. I am acerbic. I can be cruel. It's who I am. Right to the bottom. I'm neither proud of this, nor ashamed of it. It simply is. And in my work, my nature has been an advantage far more often than it has been a hindrance. I'm not gonna change.
- Sherlock, Elementary