I created a community on Lemmy.world named after my own username just to test things and post random shit… A lot of it gets upvoted so people are definitely seeing it but I don’t think I’ve got any subscribers on that one…
I also had a night where I was pretty tipsy early on in my Lemmy days where I created a number of other communities… Only one or two have any subscribers and I’m usually still the .ain one who generates content.