It seems to be working pretty well. There's the occasional transgression, but by and large we only get spam that is actually addressed to us.

It's a thing.

We park the bike near the station. Each station has extensive room for bikes. Larger cities often have underground bike parking.

I do have a bunch of IP reservations. I don't really know how you'd do port forwarding without subs static IP address to forward to. I have not seen any of the data sharing options, but it could be that I gave those permissions years ago and forgot...

It's still there for me in "Advanced networking"->"Port Management".