Usually communities arise around something useful. Dev.to is different , they must have insistently promoted to developers and curated the list of initial users

Usually communities arise around something useful. Dev.to is different , they must have insistently promoted to developers and curated the list of initial users. Indiehackers has community promoters who constatnly try to get people engaged. it's work, but it works, i guess. just by building it, doesnt mean they will come