Since we don't have a separate scat lit board, there's not really any better place for such, but if you feel like someone might be uncomfortable reading your ideas, you can always just add an appropriate warning before the text or use the category field. As far as I understand the latter would allow the users to filter out unwanted content more automatically, but would also require them to bother with that, which not everyone might be willing to (and I, for example, use the browser's private mode for gurochan, which as far as I understand makes any settings meaningless as they won't carry between sessions), while the former would be more noticeable, a solution that's cheap but works. Or you can just do both.