NAT traversal is the first point on the feature list of the linked repo. So in context, it's important to point out. While in theory it doesn't it reduces the

NAT traversal is the first point on the feature list of the linked repo. So in context, it's important to point out. While in theory it doesn't it reduces the possible connections quite a bit. Though STUN servers are plenty on the internet and free to use. There's even a service providing TURN (US geo though), but I have no idea who runs it and what their business model is, so I wouldn't rely on it.