Facebook Has Quietly Implemented A De-Facto Follow Feature
Now, Ignore has been replaced by “Not Now”. This new option takes some of the pressure off you having to reject people as it instead moves them into a state of limbo, where they’re neither accepted nor rejected. But it actually does a lot more as well.
You see, when someone requests to be your friend on Facebook, this automatically subscribes them to all of your public (“Everyone”) posts in their News Feed. Facebook doesn’t talk about this much, but it’s a very real feature.