My device always shows the WiFi number. It’s nice to know since I live in an apartment building with shared wifi. The shared wifi is 4/5 and mine is 6 so I can see at a glance if I’m connected right.
I can’t imagine another reason it’d be useful though.
That isn’t what normalized means in the context of databases.
Also databases store the same data many times over often. For redundancy and load-balancing purposes. Really, federation just takes care of replication somewhat.