DPM just shot herself in the foot.
I don't know how much the rest of you know about Twitch culture (I'm an expert), but honor and shame are huge parts of it. It's not like it is in other Twitch chats where you can become successful by being an overbearing Mod. If you screw non-subs over in GD Studio Chat, you bring hate upon yourself, and the only way to get rid of that hate is repentance. What this means is the GD Studio unsub-chat, after hearing about this, are not going to want to purchase subscriptions, nor will they tune into streams and purchase tickets for future GD Studio events. This is HUGE. You can laugh all you want, but DPM has alienated an entire market with this move.
DPM, publicly apologize and unban most of the people you banned or you can kiss your reputation with chat goodbye.