An introduction to scripting

What is scripting?

Scripting in the term that is relevant to AMV editors is using Avisynth filters to repair, enhance or upscale the existing visual quality of footage.

There are various reasons why scripting is advantageous to an AMV editor

Better quality videos to stand out against low quality uploads from other editors.
Not being reliant on trying to find the best possible quality group encodes for anime footage.
Utilizing scripting to make workflow easier to be able to spend more time editing and less time pre-rendering.
Making sure that all of your hard work of VFX and cuts end up being shown in the best quality possible to your audience.

Is scripting hard to learn? No, once you get a basic understanding of what function specific filters do it becomes very easy to figure out which one to use for what you need to do to your video.
Is scripting resource intensive? It can be, but only depending on what filters and what settings you have those filters on. In general, there are a lot of ways to work around this and mitigate the processing resource cost of most scripts though.
Why are there such little resources in the AMV Community for scripting? Simply because it is such an old way of doing things. It was originally written in the early 2000's for being able to fix up DVD rips of anime and do some basic cleanup. It was utilized heavily by older generations of editors who have since stopped editing and the information was never passed down or iterated on by many people.
"Well, X person showed me this script. What is different about your guide?" I absolutely guarantee that the script you were shown by somebody else is absolute bullshit. Most of the scripts I have posted publicly have been intentionally awful troll scripts meant to mess with people. Any example script anyone else has sent me of their own experiments are always terrible. They are the wrong filters, using the wrong settings, in the wrong order.