Sorry that happened to your partner.
I am surprised that death threats are still around. Is it not actually a crime or is anonymity so good that law enforcement can't trace them or do the recipients or police just not bother following up?
Personally, I'd really like to see them put at least a little effort into it, to send the message that it is in fact illegal and you take at least some risk. As it is, people often make no real effort to disguise themselves, but get away with it because no authority cares enough as long as they don't commit actual violence. So they can shut down speech with impunity.