Maybe-followers: If your timeline looks like you’re a decent human, I’ll allow a follow. If it looks like a real human is monitoring a bot, sure.
My follows: Sorry tech and gameing folks. If that’s all you post, I won’t follow back.
I need original content. Some accounts are all boosts and replies. That’s not my *rule*; some folks boost interesting stuff, but my timeline has plenty.
I make most of my posts public, but it’s important to screen my followers and keep a few posts limited.