I think people are trying to reason the wrong way here. Sure community and others matters, I don't disagree. But I think people need to ask themselves, what they want? If they want to keep playing here because they enjoy and that is what they want, then following the embargo makes that more likely as NCSoft is less likely to get pissed and just shut this all down. Is it any guarantee? Absolutely not. To me, this decision doesn't require thinking of others or being considerate, it just takes a slightly longer term outlook for one's own wants.
So between thinking of others, or only about oneself, to me the most logical step to take is to not post videos or stream HC for the time being. Personally I don't care what a person's motivation here is, because both lead to the same action.
edit: I was working and on the phone when I wrote this, please ignore the absolutely terrible sentence structure.