Below is a summary of rules you need to follow if you want to have an account on this server of Mastodon:
"Don't be dick." This should be enough of a warning, but if not, you will be banned. My moderation time and availability is limited and I'd rather be spending it on helping this instance be protected from external sources rather than having to deal with users here.
At the time of writing, this Mastodon instance is a hobby project. If you're concerned about the server failing and maybe not coming back with your account; that's a good mindset, it could happen. That's just the blunt reality of a personal project like this.