Don't. Terrible idea. If you're considering it, you've never been to ULP or you're 15yo yourselves. So now mods, in addition to barely managing bunkerchan (and not doing a great job of it, let's be honest), want to manage a discord/riot chat that will most certainly be flooded with /pol/acks, children and "memers".
You haven't addressed the issues of moderation on bunkerchan, but now you want to expand? Why? This is obviously just a power grab. "People want to use a chat? Better control that too!"
I wouldn't be opposed to you guys doing these things if you have shown to have an iota of leadership ability in you, but you don't. That's why you allow admins to run rampant, and that is why you rely on voting to make decisions, so that you can wash your hands of the decision. Why should we let 7 people who can't even talk amongst themselves to reach a consensus to increase their sphere of influence? What, you want to be terrible at something else now, too?