Seriously people. I like stories and art featuring characters from the show as much as the next brony, but you can't possibly shoehorn established characters into implausible situations without detracting from the quality of the story."What about BG ponies!? They don't have an established personalitybackstory!"No they don't, but nearly all of the most popular ones are going to have tons of fanon baggage attached. So either you go with a totally new take on a character (which often raises just as much ire as creating an OC), or you use an obscure, unpopular background character that barely anyone's heard of. Since you're basically going to be creating their background and personalities from scratch, you might as well make an OC.Especially if you're having part (or all) of your story in a place that hasn't been explored in the show. Coming up with contrived, convoluted explanations for how or why a character we saw in the background in Cloudsdale during "Sonic Rainboom" is actually native to a distant kingdom just clutters the narrative and detracts from the plot.Stop hating on people trying to be, for Luna's sake.