Ce54r's Follower Arithmetic Law. [Only applies when you follow more than 500 people].
PYF: People You Follow
FY: People Following You
If any of these two conditions is true:
1. PYF > 5 x FY
2. PYF - FY > 1000
Then => I won't follow your ass back
Exception: if you consistently interact with me and I can tell you read my crap, then the above law doesn't apply.
I'm supposed to be here because I'm not a product, remember?
And that's precisely what I become if I decide to follow you back.
I know you won't read this, though, so it won't matter I've written it down.