Pinkie Pie seems to be the random airhead, but that is just because you can’t see the deeper nuances. Never forgetting, and wisdom beyond Ponies. There is an adventure afoot, on which she is with Fluttershy and a few other of her numerous friends
I just recently started to write stories directly towards the FiM actively, though I have been writing for years, publishing numerous stories at Mibba and the eventual pony story, as far as to the MLP