Basically what this thread is about it creative ways to assign materia to your people. This doesn't mean putting 2 materia in the same slot and getting useful results. This is about how you assign materia to your characters to make them into unique chatacters.
For example:
On one of my files, I "elemented" each person. I made Tifa Ice Elemented, which meant that I put Ice materia with an elemental materia on her armor and weapon, so she hit with ice, and abosorbed ice, also giving her the ability to cast ice spells, gave her the summon materia "Shiva", and gave her any other useful materia that doesn't have to do with the character's mold (Like HP or MP+ materia). I did that with almost every character, exept with different elements.
This is the sort of thing this forumn is about. It can be more general, like "I just give all of my characters random butt-kicking materia and slide through like that", or any other ways to form characters. It can even be character-specific, whatever you want.
I just want to STRESS that this forum isn't about cool results you get when you put 2 materia in linked slots. It's about HOW YOU USE THE MATERIA TO MOLD CHARACTERS.