Look mate, I'll be honest with you, you've got a long way to go before I believe you'll be suitable for moderator.
None of what is written here is meant as a personal attack. I have tried to be as constructive as possible, if anything comes across this way, I apologise.
Now, Drowsy and Valence have done a pretty good job of listing these things, but I'd like to add my input and experiences with you as well.
Back when you were Regular +, you would connect to the server and teleport to myself or Malice, often times without asking, when we were occupied with something else. You would often claim to have magically fixed your issues in a day, and it seemed you were trying to hint at getting +1s. Unfortunately mate, this along with your recent post on your app, have honestly not helped your chances at all.
You seemed to believe that being moderator was great fun and easy work. Sure, it certainly can be. But the thing is, many times it can become rather stressful:
10 minges are on the server at once, and you're the only staff, you've got to triple check the ids, to make sure you don't have the wrong one in the clipboard, one of them is mic spamming, got to mute him. One has started prop pushing, got to jail him, someone left, make sure you have his ID. All while trying to deal with another person who has been minging all day.
While that example was a tad extreme, it shows that it's not always sunshine and rainbows.
From what I and many others have seen, a fair few these so called "mingers" have just done mild things to set you off. The issue is that you take things too harshly, and allow yourself to get upset over the smallest things. While I understand these things upset you (and I know we all have different levels of tolerance), to be staff you need to be able to put up with people's bullshit and make the right calls at the right time. Patience is important, and I feel you lack it as of now.
This is a quote that bothers me a fair bit. When staffing, oftentimes, you will be on your own. This means you have to make decisions quickly and rationally. What that quote shows me is that you are relying too heavily on others to help and "fix" your problems when really, it takes commitment and action from the individual to fix the individual's problems. I'm not saying go it alone. I'm saying, you need to act in order for other people's help to mean anything. You've got to help them help you. Know what I mean?
Your mod app is honestly, pretty decent, however, there are two things in particular I believe you should elaborate further on.
What would you do if the player were to come back and continue? Think to how you have seen staff handle this in the past.
What would the punishment for the other player be? A kick? A ban? Elaborate further please.
The current image you have created for yourself is not good. The angry outbursts you frequently have leaves a bad taste in many player's mouths. It gives the impression that you would be "trigger happy". Banning, kicking, gagging, etc. people for the slightest things. This does not make people want you to become moderator as you can come across as immature and easily upset, which is not the qualities needed in a moderator.
Now, I'd also like to note on your inactivity on sandbox. I have not seen you in some time on there. Activity is important not only for your application but also when you have moderator. The server needs to be staffed regularly so that all users at all times can have the best experience. Inactive staff does not help this.
You've also done a fair bit of backseat moderating which is obviously a no no and isn't particularly helpful. If you see a minge on the server report it to staff, and let them deal with it. You may believe that backseat moderating makes you appear a more viable candidate for moderator, but it usually just winds up being unhelpful.
Unfortunately mate, you've created a bad image for yourself on the server. Frequent outbursts of anger over small things, rudeness, pestering staff... None of this has helped your image. And so, I'm going to have to issue you with a;