Chapters:

0:00 Intro
7:51 Introduction: The Sims 2 references and HoodChecker
20:34 Deleting character files & deleteAllCharacters cheat
24:08 Deleting Sims from the bin is safe, actually
37:16 It's not unfixable, either!
40:31 But... EVERYONE always said it causes corruption!
43:22 How did we get here?
57:13 Sim Creation Index: why you're not as screwed as you think you are
1:05:00 Moving Sims between neighborhoods
1:09:01 What does "Incorrect Subject Instance" mean?
1:11:39 The curious case of Samantha Ottomas
1:15:56 Actual reasons for some of the corruption symptoms
1:16:43 Toddlers with Lifetime Wants and other reference-related oddities
1:29:12 Sim's data gone: why is my Sim suddenly an adult male?!
1:33:56 The attack of $Subject: why do Sims sometimes go missing?
1:44:49 What if my neighborhood disappeared?
1:48:33 Conclusion: How to avoid & fix corruption

Cyjon Memory Fixes: http://cyjon.net/node/395
How to change memories in SimPe: https://modthesims.info/t/228915

Videos used/mentioned:

Tanic Sims 2
How Corrupt is Veronaville anyway?    • How Corrupt is Veronaville Anyway? ||...  

Calipers and Tongs
Adding Corrupted Strangetown Sims to Blightgate (Sims 2, Blightgate)    • Adding Corrupted Strangetown Sims to ...  
The Sims Whose Mouths Are On Their Foreheads (Sims 2, Blightgate)    • The Sims Whose Mouths Are On Their Fo...  
Something Disturbing Happened To These Two Maxis Families (Sims 2, Blightate)    • Something Disturbing Happened To Thes...