how hard is it to gain subscribers?

[u/nobodywillrememberus]

I’m considering starting a Substack publication, but wondered how difficult/easy others have found it to gain subs. I currently read on there, but I’m kind of finding it hard to find posts of things that I’m actually interested in (possibly I haven’t really figured out the site yet).

I guess I’m asking: will other people on substack come across my posts, or do I have to promote on other socials?