Sharing streaming service passwords--good idea or bad idea?

mossygreen thought this was worth mentioning said

My sister finally got internet at home, and I want to give her my Hulu password so she can watch Lodge 49 (nothing else, just Lodge 49). I have the half-price Hulu deal from Black Friday, not a fancy plan. Can I get into trouble by doing this, or will it just not work for her if there’s an issue? I still haven’t watched season 2 of Lodge 49, so this is an important question. Thank you for any answers, useful or not.