I was working on updating the FAQ What are the reputation requirements for privileges on sites, and how do they differ per site?, which says that despite most privileges of 25k+ users being conferred as part of ♦ moderator rights, there are a few (4.5 technically) that are not awarded as part of it, and the check only checks for the required reputation. The FAQ on moderators also says the same thing (after I edited it). These include:
- Voting in moderator elections
- Answering protected questions
- Not being prompted to comment when downvoting (counted as half, since it doesn't actually restrict one from doing anything)
- Having a network-wide flair
These may not be relevant when it comes to most active moderators (which are elected), but does come in handy when it comes to new pro-tem moderators on beta sites, automatically-appointed moderators on beta site pro-tem elections where they had only 300 rep (the minimum required to nominate), and (most importantly) SE staff, who have network-wide moderator rights but usually have only 1 or 101 rep on sites. The case about network-wide flairs is relevant because the list of CMs here contains flairs, and there was one case where a CM didn't have the required rep despite having mod rights so they showed up as an unsightly sad face emoji there.