We've lost quite a few as well, relating to players who have been on the receiving-end of a permaban. I'm not talking about those who receive the ban, but the people they play with that lose interest and/or are infuriated after someone is banned. I've read more than once in chat from runners that it feels like the NST doesn't appreciate the fact that a single player means so much to such a small community, and that the act of permabanning over counselling makes players feel disposable and therefore ends in resentment towards those in the NST who are honestly trying to help.
I know this isn't the right place to really dive into this, nor am I sitting here questioning the actions of the NST, but the effects of a permaban ripple through the community in ways that I imagine the NST doesn't really intend. They want to permaban players that are taking away from the experience for other players. It's a testament either to the community size or collective personality that individuals who were legitimately cheating are mourned as significant losses when they are perma'd.
Personally, I'd rather play against a cheater than no one at all.