Heya
My original plan was to add folders for each anime one at a time but having a miscellaneous oc folder does sound like a good idea, you're dead right about it showing which shows to add without having to ask.
I think I'll do both, add a new show folder since we're about due anyway and add an "other" folder also. I will try to get that done within the next day or two.
Out of curiosity which animes were the ocs you wanted to add from?