Heads up, Creators: On Dec 13-14 you may see a noticeable decrease in your sub count as we remove spam subscriptions. If spam is removed, you'll see a YouTube Studio alert: https://goo.gl/qGDBvX This should help give you confidence that the subs you do have are real fans!
Demonisation is fine now. Just don't pull a filthy Frank. Also don't swear, no blood or violence, no sexual content, no bullying, no cursing, no nothing and You are set.