Doctor XFizzle's "Pick a Flaw" series has underwent an extension, from the middle of season 4 to exploring seasons 1 and 2. Multiple people (including myself, ChikoritaBrony, Captchet, etc.) have published various threads and expanded the series for FIM's other seasons.

Rather than merely repeating the same extension into my OP's, I'll be plugging in this portal, which will show all of FIM's "Pick a Flaw" threads and be bumped every now and then, and link the other PaF threads in the bottom of the OP (usually contained in a "spoiler"). Each time one gets submitted, it'll be linked back to this portal.

All of the threads are found below the horizontal rule.

Season 1:

1. Friendship Is Magic, Parts 1 & 2
   
2. The Ticket Master
   
3. Applebuck Season
   
4. Griffon the Brush Off
   
5. Boast Busters
   
6. Dragonshy
   
7. Look Before You Sleep
   
8. Bridle Gossip
   
9. Swarm of the Century
   
10. Winter Wrap Up
    
11. Owl's Well that Ends Well
    

Season 2:

1. The Super Speedy Cider Squeezy 6000
   
2. Putting Your Hoof Down
   
3. Dragon Quest
   

Season 3:

1. Spike at Your Service
   

Season 4:

1. Rainbow Falls
   
2. Simple Ways
   
3. Filli Vanilli
   
4. Twilight Time
   
5. It Ain't Easy Bein' Breezies
   
6. Somepony to Watch Over Me
   
7. Maud Pie
   
8. For Whom the Sweetie Belle Toils
   
9. Leap of Faith
   
10. Testing Testing 1, 2, 3
    
11. Trade Ya!
    
12. Inspiration Manifestation
    
13. Equestria Games
    
14. Twilight's Kingdom
    

Other:

1. The Micro-Series, Part 1 - Mane Six
   
2. The Micro-Series, Part 2 - The Other Cast & Overall Series