A minefield at the best of times, Requests for Adminship are where Wikipedia gets the most personal, the most vindictive and the most stubborn. To be sure, Adminship should be "no big deal", as Jimbo says. To be sure, what a user did many months if not years before should rarely be an issue. Indeed, barely anything on its own should cause anyone to automatically vote "oppose".
But we do not live in a perfect Wiki-world, and we are not all entirely rational automata. And so RfA is in the state it is in. People bickering about long-forgotten arguments, candidates sometimes being judged more on the amount of edit summaries they fill out than the quality of their recent dispute-resolving behaviour. RfAs can quickly become battlegrounds, with two opposing camps of editors with diametrically-opposed views of a candidate's suitability. Often, the opposers' reasons border on offensive. To me, this represents what Wikipedia is not about. It seems to violate three key policies that sit at the heart of our beliefs: assume good faith, be civil and no personal attacks.
So what are my criteria for RfAs? And how can we move forward so they become less about personalities and more about suitability for Adminship?
My criteria are pretty simple, revolving around the sole premise that users with some experience, and with no pattern of evidence to suggest they will abuse it, should be given Adminship if they are nominated for it.
For self-nominations, I would up the ante a little:
Moving forward is going to be hard. As I said before, people are human, and we all bear grudges. In my opinion, though, three things would help the RfA process enormously: