A possible concise summary is:
The speaker reviews some of the world's worst PC builds submitted by Twitter users, ranging from dusty, rusty, and fire-prone systems to bizarre and impractical cases made of pizza boxes and laundry detergent containers. He also shares his own experience of a failed water cooling attempt and comments on the infamous Verge PC. He asks the viewers to vote for the worst PC and promotes his merchandise store.
Here are some key facts extracted from the text:
1. The video is about the world's worst PC builds submitted by users on Twitter.
2. One of the PC builds had a fire inside the case and a flammable aerosol can next to it.
3. Another PC build had a dead mouse stuck in the fan grill.
4. The Verge PC build had poor cable management, wrong RAM placement, and was widely criticized online.
5. Some PC builds used pizza boxes or laundry detergent containers as cases.