It's probably a week or two ban then.
I believe research is perm. Although technically a pig taking a stuff is considered research to some people.
The rule doesn't specify research, it specifies 'gross stuff'.
That includes research, gore and excrement/bodily fluids.
It's also not limited to images/videos. Text describing the above can also be bannable.
The people who just posted giant walls of letters are the sort of people who do the same stuff on those public wordpads, and make them completely un-fun by writing it over your stuff.