When you squeeze the handles the blades press together. Using the wrong hand for most scissors it produces a small gap that prevents them from cutting the paper. It'll just pinch it.
Try it, then try cutting again with the correct hand for your scissors. Odds are your scissors are not ambidextrous but you just never had a reason to discover this.
He honestly just looks like the type of guy that'll rape you in a dark alley while reading from the Bible with the televangelist accent and blame his behavior on your outfit
File system. There's no reason a file system couldn't increase this limit but there's little reason to for most users. Not sure who the hypothetical user would be that needs a higher limit.
What brand do you use of you don't mind sharing?