To define what Mastodon is, I will borrow from Wikipedia: "Mastodon is a free and open-source self-hosted social networking service. It allows anyone to host their own server node in the network, and its various separately operated user bases are federated across many different servers. These nodes are referred to as "instances" by Mastodon users." What you have found @ is one such instance of the greater Mastodon collective where the focus is on light moderation, no heavy-handed thought-policing, and the freedom to have a respectful conversation.