Fridge / Stargate Atlantis S04 E12 "Spoils of War"

Fridge Brilliance

• Throughout the show, different Wraith were played by the same actors (James Lafazanos and Andee Frizzell). The reveal of the cloning facility provides an in-universe explanation for You Look Familiar: These Wraith are all Wraith-Lantean War-era clones from the same genetic template (and who've survived and hibernated over the last 10,000 years).
• The Wraith's cloning technology also resolves Fridge Logic regarding the Wraith's population numbers going all the way back to the Pilot. It finally explains in-story why the Wraith have had sustainability problems (and how their population could've grown so large in the first place if there are not enough humans to feed upon in Pegasus). There are too many Wraith in the Pegasus Galaxy because of the Zerg Rush 10,000 years ago. They were so focused on beating the Ancients with sheer numbers that they didn't stop to think how they were going to be able to support all these new Wraith after they won.
• While it's not explicitly stated, the backstory of the Cloning Facility could also finally resolve the longstanding mystery from Season Two's "Aurora": The mysterious weakness in Wraith technology that the Lantean crew discovered during their final mission. If they had investigated the disappearance of Lantean ships and discovered they'd been captured and stripped of their ZPMs, it would be a massive weakness of Wraith technology. Destroying the cloning facility and its technology would cripple the Wraith and restore the balance of power in the war.