Okay, I'd like to hear your thoughts on this: background ponies. they already exist, they have a name...but they have nothing to go with them, no personality at all. Have you taken a BP and given them a persona to work with?

Not talking about the "ascended extra" BPs (e.g. Vinyl, Octavia, Lyra, Derpy), but the ones who most people still assign just a name to, if that, and refer to just that - again, if that.

For example, canonically, Orange Box is just a derpy clone with straight eyes and orange hair in one scene. However, in the AAGverse, she's Derpy's niece, a baker and a somewhat angry mare accused of being the host for the new Nightmare Moon..

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No...I can't say I've, but I have heard of those that do and frankly it's alright with me until the show actually gave them a personality that everyone could go along with.