Tip 1: Use hashtags. There's no algorithm to suggest followers or shove posts into your feed in the hopes you follow someone.
Tip 2: Boost (re-post) toots liberally. *You* are the algorithm.
Tip 3: Use CW (content warnings / content wrappers) to discuss politics, the meta.
Tip 4: To create "threads", make the first post public and each reply "unlisted" to prevent clogging up your instance's feed.
Tip 5: Provide text descriptions, even just basic ones, when attaching photos or media.
Tip 6: Use the "report" features for moderating trolls so your admins can take action.