Is there something you're planning on that you're worried will get you disqualified?
Viewing post in "No NSFW content, offensive content, excessive gore/violence"
Valid question. I've seen and entered multiple jams with the same rule. I've never heard of anyone's game actually getting disqualified over it.
I think it's one of those safety rules so the organisers can disqualify when they "need" to without having to deal with some pedantic jackass defending their "right to free speech" in the form of obvious toxic hatred.
If you're worried, post the thing you're worried about or contact the organiser in private. Unless you're actively trying to incite violence or harassment, you'll probably be fine.
The person that responded above you answered as good or better than I would have. You're almost certainly fine, I've never heard of any disqualifications because of this. It sounds like they'll specify more in the rules but if you're really worried about dancing on a line you shouldn't, I'd just message and ask first.