At least have a newsletter: ConvertKit has a 10k sub plan for free, and they even let you use their PO Box for the footer stuff. I know building one is hard, but the mere 100 people who subscribe to mine respond in greater percentages than any social media presence I've ever had aside from Google+. Export your list regularly. Learn about permission reminders and other best practices.
At least have some canonical place that points to other things. Even a Linktree or Caard (or Keybase) without a domain is better than putting it all on one site that has an agenda and, aside from Twitter, a trust and safety team and algorithims making calls like this and sometimes getting it wrong. Just something that comes up when people search what you're known by so you're not completely hosed if you get suspended.