Lol same, that splitting of Applejack's name is eating at me
The only balance that I give to explaining the article's mentioning of "no 'real' personality" is in his belief that that they are not dynamic (which we all are likely to disagree)
True, you can guess their personality, but apparently this person did not watch all the episodes, in which dynamics are dealt with especially when each mane pony is out of her element (I know I saw an image chart of it somewhere), but I'm a list it at the top of my head just cause I love organization
[COLLAPSE="*****es love organized tables"]
Mane Pony
Hit
Miss
Episode (Dynamic)
Twilight Sparkle Organization Chaos 110 Swarm of the Century (Build a replica of Ponyville) / 115 Feeling Pinkie Keen (*****es love logic)
Applejack Hard work Doubting of her hardworking ability 104 Applebuck Season (Working past point of exhaustion)
Rainbow Dash Being the best / Wonderbolts Failure 116 Sonic Rainboom (Fetal position / cringe)
Rarity Fashion No longer famous 114 Dressed for Success (Exile anyone?) / 120 Green Isn't Your Color (Jealousy rage)
Fluttershy Animals Unable to communicate 126 Best Night Ever (Flutterage of course)
Pinkie Pie Parties with Friends "Friends" not wanting to go to her parties 125 Party of One (Pinkamena of course)
[/COLLAPSE]
Quite biased being at the top of my head, but eh I can always edit at request
It's all in the ruffled up mane. . . or straight in Pinkie's case.