"ORIGINAL CHARACTER, DO NOT STEAL" is a meme commonly associated with Sonic "original characters," or OCs, who are often just recolors of existing characters. It mutated into "DONUT STEEL" because the internet has a deep love for horrible puns.
Anyway, what's going on is that people who have actually officially worked on Sonic are claiming Sega stole the characters that they made for Sega. It's why they retconned so many of the old cast out of the comic - Ken Penders claimed the characters he created to be his own, so he sued Archie. Archie couldn't find the rights to the characters they owned - they claim that they burnt the documents accidentally. And thus Penders got his mitts on all the echidna characters like Julie-Su and Enerjak, and used thim in his own horrible comics.
Edited by Evac, 08 March 2017 - 08:57 PM.