Apple Certificate Expiry – Does Apple Notify?

This has to do with your friends and not your device. I haven't nailed down exactly why some of my friends allow me to set geo-fenced alerts and others do not.

I don't see a setting to disable it other than the Show Geofence Alerts From: which implies that I can restrict those I see - not those I share with.

Sorry I can't offer a perfect fix, but this is something on the account / friend's side of things and not a switch you can control on your device.

The short answer is No.

iOS does not have any way for you to redirect notifications.

It may be possible to change how some notifications are sent, and have them sent to you via Boxcar or something similar, but that is going to be limited to a very small subset of applications or services which are designed to offer alternatives. Twitter and Facebook come to mind.