To @mangobanana@discuss.online, if you make a community, either the pottery one if you feel like making a second one or any other community, feel free to post about the newly made community to either/both !communitypromo@lemmy.ca and !newcommunities@lemmy.world.
The more people follow a given community, the more it propagates whenever a post is made, and the more it propagates, the higher is the chance of someone feeling like interacting with the community or even following. And making the post to either/both communities helps giving an initial boost, though persistence in keeping posting until it gains traction should still be needed.