A death threat isn't credible until an actual attempt has been made. And even then words are just words. Nobody has to listen or react in any way towards them. We're looking at another case of widespread attempted censorship here. She may be a fake, but the wannabe dictators will run with it.
Yeah, it's okay to put a price on someone's head. Governments do it all the time and few people complain about it. Now, the person who takes up the offer and tries something should be locked up tight. Everybody goes at this from exactly the wrong angle.