I don't know. I've suggested they do.
I wonder how long you offered them this? And did you offer your candidacy?
If you take it seriously, then in one day you could solve all the issues that have accumulated for the entire time. It's strange that the responsible moderators do not do this.
Yes. I've made many suggestions over the years including adding more mods and admins to meet demand. I offered as such publicly only recently:
https://bitcointalk.org/index.php?topic=4893744.msg44447202#msg44447202 (read the first post to see all the suggestions I've made over the years).
If I was going to be made an admin though it would have likely happened by now, but somebody needs to be doing things like account restorations and adding more merit sources etc plus all the other admin duties. If there's nobody on staff that can be trusted or is qualified to do it then theymos needs to hire someone which he did mention the possibility of a while back, but merely mentioning the possibility isn't enough. People really shouldn't have to be waiting a year to get their accounts back.