No, It's mostly sex-slavery /forced prostitution. The girls are kidnapped from their home fandoms then bound and raped. Korra and Toph are in the series so it has nothing to do with race.

Well, depending on the medium, it may depend less on SPaG. (For instance, video, where speech and visuals are simply given via audio and video, not the written word.)

As such, one would instead need to focus on errors more unique to that medium- say, glitches and scripting errors in video games, or animation errors in video.

In-universe for the PPC, one would probably need special equipment- for instance, a specially-modified crash dummy made to operate with remote control to take the place of the main character in a fangame.

It's relatively easy to spork nonwritten material. After all, the most famous sporkers- MST3000- attacked movies, didn't they?