Hi there,
I did reply to the email you sent into our support address, and this thread gives a bit more clarity on what you were asking. In short, if you want to submit to HG you should focus on writing and finishing a game that hits our benchmarks for submission. It needs to pass quicktest and randomtest, and once it is submitted we will put it through a review to make sure it isn’t “grossly offensive”.
If we find that the content meets the metrics for “grossly offensive” (which are subjective because the same type of content can have very different treatment from author to author), then I will notify the author and request specific changes be made. So far I have not had any issues with authors making these edits.
The most important point in all of this is that you should finish your game with your vision in mind, and then submit it. All of your concerns about content will come after that.