This is intended as a guide to getting the most out of the request for adminship (RfA) procedure. It is not intended to be binding policy, nor is there an expectation that editors who comment on RfAs should be familiar with it; it is, rather, to be an informative guide to useful participation in the forum.
The question posed with every RfA is "Can this user be trusted with the administrator tools?" Making a decision whether to trust an unfamiliar candidate is often difficult.
It is often said that "adminship is no big deal", bearing in mind that admin actions can be undone by another admin.
RfA is not a popularity contest, nor is it designed to force potential administrators to meet arbitrary criteria. It is not designed to judge whether a potential administrator holds the correct view on a controversial issue—which is different from asking whether they will apply a current policy consistently.
It is particularly helpful to give examples when commenting. The best way to do this is usually to link to the page or the diff showing the behaviour you are commenting on.
Comments in opposition to an RfA are usually subject to greater examination than comments in support of one. It is particularly helpful if comments are precise, give examples and/or diffs, and explain why the examples presented give rise to the conclusion that the user cannot be trusted with the administrator tools.
Criticisms should be constructive and polite. They should give the candidate an idea of what they should change in order that you could trust them. If the change could be made quickly and easily, consider proposing it to the candidate on their talk page and waiting for a response before commenting on the RfA.
If you oppose an RfA, your rationale may well be questioned or challenged. If possible, consider the points raised in response to your objection, and reply politely as to whether or not you stand by your initial rationale.
If a comment in support or opposition relies on a user's support or opposition to a particular issue, it is particularly useful to make clear why this may affect their suitability to be an administrator.
A candidate may have a strong opinion on a topic but can be trusted not to abuse admin tools to further their philosophy. For example, many administrators with opinions which could be described as "inclusionist" or "deletionist" only make deletions in the most obvious and uncontroversial of cases, where reasonable editors are highly unlikely to disagree with their actions.