If those of you who voted for Teamspeak are still skeptical about Discord, look at this and scroll down: https://discordapp.com/
(Totally not trying to influence people to change their minds.)
Blood
I'm going to be honest, I'm considering just acting on Discord at this point. It's my primary voice comm provider at the moment, it's high quality, and free. I don't really want to turn down what the people want, but this would save me a hassle with trying to get a server running and sustained or try to convince the SwapShop staff to make a TS channel specifically for the members in the group.
I suppose it wouldn't be too much if we get a channel on the TF2SS TeamSpeak, but at the same time Discord is such an awesome alternative. In addition, we would have a little more privacy, maybe better quality, customization, and potentially exclusivity with Discord. Still a bit torn. We'll see what the remaining two want!