When looking at frames, it autoplays videos, if you don't notice, as it starts muted, it will continue to play more and more videos until you finally notice. If you leave the page open, it can be using up bandwith for days. Even if you do notice, it's just annoying to have to pause it every time, not to mention that if you pause it before it has loaded, it will still play and you have to pause again. It's a small thing but as someone who's constantly trying to learn about frames, this is massively annoying.
So please just stop it.
I'm aware this is probably not the right place for this topic, but i couldn't find anything better. If you know of a better place, please tell me.