[lime-users] Obstacles to a successful growth

Hi, Sometimes I explain what this community network thing is to someone in my district. They likes the idea and they has an ISP router. Then I ask them if they would like to share their Internet connection and they says "yes, why not?". But then they asks if users in the community network could have access to their private home network. I answer they could, but it can be avoided in different ways -create different VLANs in the ISP router, configure a firewall, closing ports in the computers... Then they stops liking this community network thing. It is frustrating, because many people do not share their Internet connection because of this, and so we lose the resources we need. I was wondering if there would be a way that LiMe could come preconfigured in such a way that, when an Internet gateway is added, it could only communicate to that ISP router, and no other host in that private network. I mean to automatically create the proper firewall rules so that the LiMe network could not access hosts in private networks. That would not be real security, as that configuration could be removed by any administrator in the community network, but we would be able to start our answer saying "by default LiMe cannot enter into your private network", and then explain what they could do to improve their security. What do you think of it? Have you found this obstacle? What would you reply to that person? Is my proposal doable? If so, should I open a Github issue? Where? In lime-packages?