Templates
Yes, I think all the templates are in need of a review ever since the forum migration and the implementation of instant runoff voting. The counting spreadsheet also needs a look. I tried your IRV spreadsheet once and couldn't get it to work, and I fell back to using multiple old-style sheets, as was demonstrated this past election cycle. I'm not sure if I just didn't click the right buttons or if I legitimately broke something bad when I tried the IRV sheet.
Campaign Topic Without Declaring Candidacy
Kindly remind them via forum PM, a message in the thread itself, and a telegram that they need to declare candidacy in the appropriate Candidacy Declarations thread. If they don't make their declaration in the CD thread, well, that's a real shame for them. I mean, we do say
"in this thread" twice when we start that thread.
Ring of Fire
Well, I'm not going to rob the community of a good debate. The worst I'd probably do is ask for the thread to be moved outside the Elections subforum, but even that I'm not really keen on. If it's relevant to the election, it should probably stay where it is. "Moderating" a "no-holds-barred" debate would be up to Forum Moderators and Admin, because forum rules are still forum rules. "No-holds-barred" is kind of a misnomer there.
ABC
I think it's pretty standard what the order of letters are in an ABC format, with A being the first option, B being the second, and so on. I wouldn't discredit the vote or challenge it in that case. Now, if the ballot looked like this...
Vice Delegate:
H. Sil Dorsett
D. Plembobria
Q. Artemis
C. Syrixia
... I would probably consider that an ambiguous vote and not count it, given the out of order and non-contiguous letters, and then wait for the inevitable Request for Review to sort it out. I mean, look at that hot mess! Who's the first preference? Sil Dorsett (top line) or Syrixia (1st alphabetically labeled)? Even if it was numbered that'd be just... weird. Though, perhaps it may be better to just drop letters and numbers altogether and just say that the votes count in the order they are listed, but that would probably require changing the Legal Code.
Edit: Now that I think about it, the Legal Code does say "with the candidate ranked 1 being the first preference, the candidate ranked 2 being the next preference, and so on." So... I guess letters don't actually count towards providing a rank? Oof... Maybe next general election I'll use letters and test the law.
Same Person Twice
I would count it as one vote for the duplicated candidate, one vote for the other, and one abstention. In that case, they've selected fewer candidates than are allowed and that's covered in the EC rules. If it appeared on the spreadsheet as 2 and 1, that'd be challenged. It's clear who the voter wants to be on the court, but they can't vote twice for the same person. Could you imagine the chaos of allowing up to three votes for the same candidate?