What if game = speedrun?
I agree, not enough people in the SR community know about Defrag. I remember being fascinated by it back in the day when I was learning proper movement for Quake Live and finding cool movies like this: https://www.dailymotion.com/video/x5483f2
I did enjoy what i could see : This video contains content from WMG, who has it blocked in your country on copyright grounds.