before approving a follow request I look at that being’s profile and get a feel for their personality by looking at their posts. I only reject requests if:

• they seem to be only boosting things, and not making posts of their own
• I get a bad vibe from their posts
• their account is new or mostly empty so I can’t get a sense of their personality

mostly I just want to make sure that I’m not being followed by beings who are going to be toxic at me in some way. if you tried to follow me and I rejected it, it’s probably just because your account is new or you’ve been boosting a lot and haven’t posted in a while