What Use Is An F-call?

What use is an F-call? Recently I witnessed a discussion about callsigns. As you know, your amateur callsign is akin to your personal on-air identity. It's the thing that distinguishes your station from all the other stations on the globe. My callsign was assigned to me randomly, it was intended as a temporary stepping stone to a higher license, but over time I was distracted by all the things I could do as a Foundation Class amateur and my callsign now feels like "me". The discussion was about the re-issuing of callsigns. In Australia, if you don't renew your callsign, after a period of time, it becomes available to be re-issued to another amateur. This allows people to obtain that one particular call that they feel represents them. Some amateurs have the same callsign for many years. It's their identity, it's the thing they used in contests, camp-outs, chats and the rest of their amateur life. When an active, well respected amateur relinquishes their call, often when they become a silent key,