Honestly, I feel disappointed by the behavior coming from some Uber Moderators here. I don't say every Uber Moderator is bad, since there are people who do their job well and they are fair, but unfortunately there are some who behave more like regular users. Which is actually a bad thing, since Uber Moderators are basically just one rank below Administrators.
In most sites, they are called "Global Moderators", so here "Uber Moderators" are equivalent to "Global Moderators". By holding such a rank, it means you should learn to not behave like a regular user anymore, but lean towards a more "Administratorish" behavior. You shouldn't get in fights with users for example, or even worse starting them. Or posting stupid irrelevant questions. You should give a good example to other users, since you are asking bigger influence here, than Super Moderators and Moderators.
I think, it's better for Uber Moderators to focus on questions regarding the site mostly, or write an informative MyTake and of course deal with other members posts by deleting them or hiding them, if they don't seem to be proper, and distance themselves from popular questions or fights in GAG.
Now about Moderators promotion. I have to disagree, with having a successful Report/Hide/Delete success ratio, as the only measure to get promoted. I have noticed there have been cases, where some users reached Uber Moderator status, after being a member for 6 months only. I'm not jealous by the fact they got promoted so fast, but I just find it wrong. Or how they get from Moderator to Uber Moderator in just a 2 months period.
I disagree as well, how they give Moderator badges like candies here. I believe someone should be an ACTIVE member (not someone who drops by in GAG once in a blue moon, even if he/she is a member for like 7-8 years.) for at least a full year in order to be a Moderator. Then there should be AT LEAST a 6 month period to get promoted from Moderator to Super Moderator, and from Super Moderator to Uber Moderator.
Also Report/Hide/Delete success ratio, shouldn't be the only measure, but other measures should be included, like if they have a good overall behavior here, or if they have as less posts (coming from them) deleted as possible. Obviously it wouldn't be a good idea to get promoted if you had many posts of yours deleted.