I mean “warming up” a community intentionally.
For example, one of the subs I regularly read on reddit is /r/audiobooks, looking for recommendations et cetera. The audiobook communities here are dead.
If I want to adopt one of those dead communities here, I could just decide to make several posts a week for a few months. Thereafter, if I’m still keen, and still haven’t had any interaction from the existing mods, I could approach the admin of that instance and make my case for being appointed as a mod.



You said sign up to a random instance and subscribe to 50 most active instances. I assumed the second “instance” was a mistake because you dont subscribe to instances.